Torsion Bar Applications, Installation Instructions, Drawings Parts

Torsion Bar Applications, Installation Instructions, Drawings Parts
Specifiers & Installers Guide To
TORSION BAR
APPLICATIONS
1
WELCOME
Thank you for specifying Sauber Torsion Bars.
By choosing us as your stability partner, you derive the following benefits:
* Improved Stability *
Stability is safety, and safety is our first concern.
A Sauber Torsion Bar can eliminate unwanted counterweight, offering your users an extra safety margin.
Because Sauber bars don't rigidize the chassis frame, they always provide a smooth, quiet ride.
* Long Life *
Premium bronze and galvanized components. Bushings guaranteed and replaced as/if needed for 10 years.
10 Year parts coverage when inspected at no greater than four month intervals.
* Excellent Documentation *
Our comprehensive applications charts, installation instructions and detailed drawings provide
the vital information you and your installers need in an organized format.
* Superior Support *
Toll-free phone and fax service from anywhere in North America provides easy access to the
resources of our organization through your personal company representative.
* Lower Life Cycle Costs *
Since it takes less time to mount our bar, its installed cost can actually be less than other alternatives.
Sauber Torsion Bars are designed and built to last as long as your chassis.
* Extensive Inventory *
Our inventory power puts our bar on the floor just when you want it.
Your production schedule can't wait on your suppliers, and with us as your partner, it won't.
* More Choices *
Underframe or overframe, nobody provides more installation options than we do. More choices mean a better fit for your
particular application and less "customizing" on the shop floor.
* Simplified Pricing *
Sauber Torsion Bars have just four pricing levels: A, B, C & D
2
Torque & Inspection Guidelines
Un-plated
Torque (ft-lbs)
Min-Max
Zinc Plated
Torque (ft-lbs)
Min-Max
3/2014
Page 1
Fastener Specifications & Application Information
Spring Set U-Bolt Nuts
108-137
---
1/2"-20 Grade 8 Bolts
96-128
---
1/2"-13 Grade 8 Bolts
153-205
---
9/16"-18 Grade 8 Bolts
137-184
---
9/16"-12 Grade 8 Bolts
233-310
---
5/8"-18 Grade 8 Bolts
191-255
---
5/8"-11 Grade 8 Bolts
379-504
---
3/4"-16 Grade 8 Bolts
339-451
---
3/4"-10 Grade 8 Bolts
485-728
---
7/8"-9 Grade 8 Bolts
893-1190
---
1"-12 Grade 8 Bolts
48-67 (N-m)
---
12mm x 1.75 Class 5.8
76-105 (N-m)
---
14mm x 2.00 Class 5.8
117-163 (N-m)
---
16mm x 2.00 Class 5.8
231-319 (N-m)
---
20mm x 2.50 Class 5.8
399-551 (N-m)
---
24mm x 3.00 Class 5.8
---
28-39
3/8"-16 Grade C Lock Nuts
---
63-88
1/2"-13 Grade C Lock Nuts
---
127-172
5/8"-11 Grade C Lock Nuts
---
218-295
3/4"-10 Grade C Lock Nuts
Torque Assumptions & Important Information
1.
Torque values are provided for lubricated bolts. For dry, unlubricated bolts increase torque values by 10%.
2.
Values shown for Grade 8 bolts are based on alloy steel heat-treated bolts with a minimum tensile strength of 120,000 PSI.
Nut values shown are for all metal prevailing torque "crown type" lock nuts.
3.
If fasteners are encountered or used that are outside the assumptions stated above, the installer is responsible for determining
the proper torque level based on the fastener manufacturer's recommendations.
This information is intended only as a guide. Manufacturer's torque ratings should be followed at all times.
Inspection
1.
Check fastener torque at semi-annually.
2.
Check bushing condition quarterly.
3.
Check weldments and casting conditions quarterly.
Check items 1-3 before and after each stability test.
3
8/2014
Page 4
Torsion Bar Applications Chart
Overframe Rear
Underframe Rear
Underframe Front 1
8705-F2B - '03 & Prior
8705-FA
8705-F4B - '98 & Prior
8705-F9B - 2WD & 4WD
8735-F1 - '99 & newer 2WD &
4WD
8705-F2B - '03 & Prior
8705-FA
8705-F9B - 2WD & 4WD
8735-F1 - 2WD & 4WD w/6.0L
Diesel
8755-F7B - 9K 2WD '03 & Prior
8755-F9 - 12K 2WD '03 & Prior
8755-FB - 8.5K 2WD
8755-FC - 10-12K 2WD
Dodge/Chrysler
D350/W350 - 1993 & Prior
8700-DB
D3500
8700-D1B
D4500/5500
8750-D1
Ford
E350 Van
F350 - 2WD & 4WD
F450
F550
F650/F750
LCF
8700-FB - '98 & Prior
8700-F5B (f)
8700-F6B (r)
8750-F6 (r)
8700-F7 (r)
8700-F8 - 2" Bar (f)
8750-F5B - 2.5" Bar (f)
8700-F4B - '03 & Prior (r)
8700-F2B - '03 & Prior 2" Bar
(f)
8750-F4B - '03 & Prior 2.5"
Bar (f)
8700-F3B - '96 & Prior (r)
8750-F6 (r)
8750-F5B (f)
8750-B - '03 & Prior
8750-N1 (f))
8755-F8B
8750-N1 (f))
F600/CF6000/F700/LN-CF7000
8750-CFB or 8750-B
F800/L-LN-LS-CF8000
8750-CFB or 8750-B
Multi-leaf springs--8755-F2B
Tapered leaf springs w/ shock
absorbers--8755-F3B
Multi-leaf springs--8755-F4B
Tapered leaf springs w/ shock
absorbers--8755-F5B
8755-F1B
8500 GAWR--8755-F1B
12000 GAWR--8755-F6B
Freightliner
FL-60/FL70/FL80/FS-65
8750-L1B
8755-B
Not compatible w/ air brakes
8755-L3--Shock absorbers
Business Class M2
8750-L1B
8755-B
Compatible w/ forward mounted air brakes
8755-L3--Shock absorbers
Code 400-029 8K axle w/ 3"W
Springs or Code 400-024 10K
axle w/ 3"W springs - 8755-L2B
Code 400-024 10K axle w/ 4"W
springs or Code 400-003 12K axle
w/ 4"W springs - 8755-L1B
GM/Chevy
CR3/CV3/CP3/TR3/TV3/TP3
8700-CB
TK3/TC3/TP3/CK3/CC3/CP3
P30 Chassis w/ 11,000 # rear
end (8700-C4B)
Vandura 3500 - 11000 GVW
8700-C1B (f)
8700-C4B - '00 & Prior
8700-C5B (r)
3500 Cutaway - 12000 GVW
8700-C6B
4
8/2014
Page 5
Torsion Bar Applications Chart
Overframe Rear
3500HD
C5D/C6D/C7D/P6T
Underframe Rear
8700-C3B
Underframe Front 1
8705-C4B
8750-CFB or 8750-B
8755-C5
8750-C2B
8755-C2B
8750-C2B
8755-C7 with and without
shock absorbers
8755-C4
8755-C6 - 10K
8755-C3 - 12K w/ stabilizer
Leaf springs--8755-N7B (r)
Leaf springs--8755-NC (f)
Leaf springs--8755-N7B
Leaf springs w/ shock absorbers--8755-N8B
Air Suspension--8755-N4B
8K GAWR--8755-ND
10K-12K GAWR--8755-NA
GAWR<10K 8755-N5B
GAWR=10K-13K 8755-N3B
GAWR=14K 8755-N6B
8755-N9 - 9K & 12K axles
C5H/C6H/C7H/P6S (Kodiac)
'02 & Prior
C6/C7/C8 - C/E/V Cab Styles
'03 & Newer
C4/C5 - C/E/U/V Cab Styles
'03 & Newer
W4/W5/W6 - Isuzu
NPR/NRR/FSR
8750-C4
8750-C3B
Navistar
4200/4300/4400 2WD
8750-N1 (r)
1452/1652/1400/1600/1654/
1754/1854/1954
2155/2375/2575/2554/2574/
2674/2675
4600/4700/4900
4700/4800 4WD
8750-NB or 8750-B
8750-NB or 8750-B
8755-N1B
4600LP/4700LP
8750-NB or 8750-B
8755-N2B
7300/7400 4WD
8750-N1 (r)
8755-NH
7300/7400 2WD
8750-N2 (r)
GAWR=10K-14K--8755-NE
Sterling
Acterra M5500/6500/7500/8500
Acterra
17.5K & 21K GAWR--8755-B
20K GAWR w/Air Brakes-8755-S1
Notes:
1 Underframe front bars have been discontinued - information here provides parts and service support
(f) Bar can only be mounted forward of axle
(r) Bar can only be mounted rearward of axle
When ordering whole assemblies , please provide the following:
•
Torsion Bar Model
•
•
Chassis Year, Make & Model
GAWR (Rear Axle) & GVWR
When sourcing parts, please provide the following:
•
•
•
•
•
Torsion Bar Location
Chassis Year, Make & Model
GAWR (Rear Axle) & GVWR
Bushing Type: 1) Steel Encased Rubber or 2) Urethane - Specify Orange or Blue
Toggle Link Length
5
Torsion Bar Components Breakdown
Model
Price
Code
Apox
Weight
A
115 lbs
Drawing
Anchor
Bracket
08/2014
Frame
Bracket
Toggle
Link
Bar/Arm
10053
10060
10053
10060
10053
10053
10060
10053
10060
10061
10060
10053
10060
10053
10053
10060
10060
10053
10060
10053
10060
10060
10053
10060
10053
10060
10053
10060
10053
10060
10053
10060
10053
10060
10053
10060
10053
10060
10083
10084
10083
10084
10088
10092
10093
10083
10084
10105
11257
10083
10084
10083
10090
10091
14611
10090
10091
10101
10102
10102
10090
10091
10103
10104
10085
10086
10094
10095
10114
10119
10114
10119
10112
10113
10106
10107
Overframe Applications
8700-C
8700-CB
8700-C1
8700-C1B
8700-C2
8700-C3
8700-C3B
8700-C4
8700-C4B
8700-C5B
8700-C6B
8700-F
8700-FB
8700-F1
8700-F2
8700-F2B
8700-F8
8700-F3
8700-F3B
8700-F4
8700-F4B
8700-F7
8700-F5
8700-F5B
8700-F6
8700-F6B
8700-D
8700-DB
8700-D1
8700-D1B
8750
8750-B
8750-C2
8750-C2B
8750-C3
8750-C3B
8750-CF
8750-CFB
115 lbs
115 lbs
115 lbs
115 lbs
110 lbs
110 lbs
115 lbs
115 lbs
115 lbs
B
A
115 lbs
115 lbs
115 lbs
115 lbs
B
120 lbs
120 lbs
120 lbs
A
120 lbs
120 lbs
110 lbs
110 lbs
110 lbs
B
115 lbs
115 lbs
A
110 lbs
110 lbs
120 lbs
120 lbs
120 lbs
120 lbs
C
145 lbs
145 lbs
145 lbs
145 lbs
145 lbs
145 lbs
C
145 lbs
145 lbs
1177ST
4141ST
1177ST
4141ST
1177ST
1177ST
4141ST
1177ST
4141ST
4141ST
4141ST
1177ST
4141ST
1177ST
1211ST
3906ST
3906ST
1177ST
4141ST
1177ST
4141ST
4141ST
1211ST
3906ST
1177ST
4141ST
1177ST
4141ST
1177ST
4141ST
1579ST
4137ST
1579ST
4137ST
1579ST
4137ST
1177ST
4141ST
10151
10152
10151
10152
10159
10159
10160
10159
10160
10152
10152
10151
10152
10153
10159
10160
11674
10159
10160
10159
10160
11674
10155
10156
10155
10156
10151
10152
10159
10160
10164
11674
10162
10163
10174
10175
10157
10158
10210
10210
10212
10212
10212
10212
10212
10210
10210
10212
10212
10209
10209
10209
10217
10217
10217
10212
10212
10212
10212
10212
10217
10217
10212
10212
10209
10209
10212
10212
10230
10230
10230
10230
10230
10230
10227
10227
6
Torsion Bar Components Breakdown
Model
8750-C4
8750-D1
8750-F4
8750-F5
8750-F4B
8750-F5B
8750-F6
8750-L1
8750-L1B
8750-N
8750-NB
8750-N1
8750-N2
Price
Code
Apox
Weight
Drawing
145 lbs
C
C
150 lbs
150 lbs
150 lbs
150 lbs
150 lbs
S1025ST
1211ST
3906ST
140 lbs
S3259
1579ST
4137ST
1177ST
4141ST
4141ST
4141ST
150 lbs
1172ST
145 lbs
145 lbs
140 lbs
140 lbs
140 lbs
08/2014
Anchor
Bracket
Frame
Bracket
Toggle
Link
Bar/Arm
10163
17234
10159
10164
10160
11674
11674
10164
11674
10164
11674
10176
10176
10245
10245
10229
10229
10229
10229
10245
10230
10230
10228
10228
10245
10245
10060
17235
10053
10053
10060
10060
10060
10053
10060
10053
10060
10062
10060
10119
17233
10108
10108
10110
10110
19178
10106
10107
10106
10107
10120
10120
10184
10185
10166
10170
10169
10171
10182
10183
10183
10154
10166
10172
10167
10173
10194
10195
10199
10201
10080
10080
10215
10216
10215
10216
10218
10219
15160
10211
10213
10214
10213
10214
10220
10220
10221
10223
10055
10055
10053
10122
10122
10098
10060
10100
10055
10062
10062
10053
10053
10125
10126
10126
10087
10096
10060
10097
10053
10053
10054
10133
10136
10143
10061
10144
10060
10121
10056
10122
10063
10123
Underframe Models
8705-C2
8705-C3
8705-C4
B
155 lbs
145 lbs
2200ST
8705-C4B
145 lbs
4143ST
8705-F2
8705-F2B
8705-FA
8705-F3
8705-F4
150 lbs
125 lbs
1584ST
4138ST
4138ST
1624ST
1974ST
8705-F4B
125 lbs
4144ST
8705-F5
8705-F6
8705-F7
8705-F8
8705-F9
8705-F9B
150 lbs
2428ST
1584ST
150 lbs
150 lbs
A
B
155 lbs
B
8735-F1
8755
8755-F4
8755-F5
8755-N7
8755-N8
8755-B
8755-F4B
130 lbs
C
155 lbs
155 lbs
4138ST
175 lbs
3581ST
10200
10202
10177
185 lbs
1172ST
10178
10222
13012
10224
10226
10078
185 lbs
4142ST
10179
10079
7
Torsion Bar Components Breakdown
Model
8755-F5B
8755-N7B
8755-N8B
8755-F6
8755-F6B
8755-F7
8755-F7B
8755-F8
8755-F8B
8755-F9
8755-C2
8755-C2B
8755-C3
8755-C4
8755-C5
8755-C6
8755-C7
8755-F1
8755-F1B
8755-FB
8755-FC
8755-L1
8755-L1B
8755-L2
8755-L3
8755-L2B
8755-N1
8755-N1B
8755-N2
8755-F2
8755-F3
8755-N2B
8755-F2B
8755-F3B
8755-N3
8755-N3B
8755-N4
8755-N4B
8755-N5
8755-N5B
8755-N6
8755-N6B
8755-N9
Price
Code
Apox
Weight
C
140 lbs
Drawing
Frame
Bracket
Toggle
Link
Bar/Arm
185 lbs
2134ST
3867ST
2155ST
4140ST
1172ST
5536ST
3867ST
1675ST
4139ST
5063ST
5115ST
4139ST
5063ST
4139ST
2155ST
4140ST
5063ST
5063ST
2155ST
4140ST
2155ST
5536ST
4140ST
1172ST
4142ST
1172ST
10186
10187
10203
10204
10205
10206
10208
15134
15134
10208
13672
15134
10208
15134
10188
10189
12998
10208
10190
10191
10198
15107
10198
10178
10179
10178
10240
10241
10242
10243
10078
10079
13013
10078
10079
13275
10079
10079
13275
10082
12978
12962
15733
15733
10235
10236
10235
10079
10236
10081
10082
10078
10053
10060
10053
10060
10056
10063
10060
10057
10064
10060
10061
10063
10060
10063
10053
10060
10060
10060
10053
10060
10053
10063
10060
10058
10065
10055
10141
10142
10145
10146
10147
10148
13359
10122
10123
13276
13673
10123
14609
10123
10129
10130
14626
10130
10131
10132
10137
10123
10138
10122
10123
10122
185 lbs
4142ST
10179
10079
10062
10123
110 lbs
2134ST
3867ST
2254ST
4145ST
2155ST
4140ST
2134ST
3867ST
3849ST
10186
10187
10192
10193
10196
10197
10186
10187
10207
10231
10232
10237
10237
10238
10239
10231
10232
10244
10053
10060
10067
10067
10053
10060
10053
10060
10060
10127
10128
10122
10123
10134
10135
10139
10140
10149
140 lbs
200 lbs
200 lbs
190 lbs
130 lbs
C
140 lbs
190 lbs
190 lbs
115 lbs
185 lbs
185 lbs
118 lbs
185 lbs
115 lbs
115 lbs
D
145 lbs
145 lbs
C
110 lbs
110 lbs
115 lbs
185 lbs
115 lbs
185 lbs
185 lbs
C
C
110 lbs
160 lbs
160 lbs
145 lbs
145 lbs
120 lbs
C
08/2014
Anchor
Bracket
120 lbs
170 lbs
8
Torsion Bar Components Breakdown
Model
8755-NC
8755-NA
8755-ND
8755-NE
8755-NH
8755-S1
Price
Code
Apox
Weight
185 lbs
D
145 lbs
145 lbs
145 lbs
C
C
185 lbs
185 lbs
Drawing
4142ST
5063ST
5063ST
4853ST
4142ST
5536ST
08/2014
Anchor
Bracket
Frame
Bracket
Toggle
Link
Bar/Arm
10179
10208
12998
13011
13672
10179
16912
16914
10082
12825
12825
12956
10062
10060
10060
10060
10123
10150
13357
13361
10082
16915
10063
10062
10123
16911
9
Torsion Bar Components List
Part Number
Item Number
8700-01
10045
Anchor Bracket Bushing - 110480
8735-01
10046
Blue Urethane Bushing Set - 3651ST (each link requires (2) sets)
8735-03
10047
8735-02
10048
Orange Urethane Bushing Set - 3851ST (each link requires (2) sets)
Note: This part is not a direct replacement for 8700-01 without complete toggle link
Toggle Link 3/4" Dia Stud w/ Lock Nuts - 3659ST
8700-02
Upper Rubber Insert Set - 2" (each bar requires (2) sets)
8755-01
10049 (Obsolete)
13048 (Current)
10050 (Obsolete)
13047 (Current)
10051
8755-02
10052
Crosstube Clamp Bracket - Underbody
8700-ADB
10053
Toggle Link w/ Orange Bushings - 3.0" C/C Holes
8755-BKB
10054
Toggle Link w/ Orange Bushings - 5.0" C/C Holes
8755-AGB
10055
Toggle Link w/ Orange Bushings - 9.0" C/C Holes
8755-ACB
10056
Toggle Link w/ Orange Bushings - 11.0" C/C Holes
8755-AFB
10057
Toggle Link w/ Orange Bushings - 13.5" C/C Holes
8755-BDB
10058
Toggle Link w/ Orange Bushings - 16.0" C/C Holes
8755-ANB
10059
Toggle Link w/ OrangeBushings - 18.0" C/C Holes
8735-AA
10060
Toggle Link w/ Blue Bushings - 3847ST - 3"
8735-AB
10061
Toggle Link w/ Blue Bushings - 3847ST - 5"
8735-AC
10062
Toggle Link w/ Blue Bushings - 3847ST - 9"
8735-AD
10063
Toggle Link w/ Blue Bushings - 3847ST - 11"
8735-AE
10064
Toggle Link w/ Blue Bushings - 3847ST - 13.5"
8735-AF
10065
Toggle Link w/ Blue Bushings - 3847ST - 16"
8735-AG
10066
Toggle Link w/ Blue Bushings - 3847ST - 18"
8755-BF
10067
Spherical Rod End Toggle Link w/ Spacers - 4.0" C/C Holes - 2618ST
17235
Toggle Link w/ Blue Bushings - S1023ST
8755-03
10068
Flat Washer - 1.75"OD x .75"ID x .25"Thick
8755-04
FAST - .75"-10x4.50"L Grade 8 Bolt w/ Washers & Nut
8700-16
11074
11039
11041
11005
10070
11002
13280
11067
11002
11040
10297
13328
11004
11003
11075
8700-18
11078
FAST - .75"-10x6.75"L Grade 8 Bolt Only
8700-19
11066
FAST - .625"-11x5.5"L Grade 8 Bolt Only
8750-01
08/2014
Description
Upper Rubber Insert Set - 2.5" (each bar requires (2) sets)
Beveled Spacer - Underbody - 2565ST
Toggle Links
8700-12
8700-14
8700-15
U-Bolt, Square Bend - .625"Dx5.5"Lx2.625"W w/ Washers & Nuts - LS
FAST - .625"-11x6.0"L Grade 8 Bolt w/ Washers & Nut
FAST - .50"-13x3.75"L Bolt w/ Washer & Nut
FAST - .75"-10x5.50"L Grade 8 Bolt Only
10
Torsion Bar Components List
Part Number
Item Number
8700-20
11081
FAST - 1.0"-8x5.5"L Grade 8 Bolt Only
8700-21
10071
Spacer - .75"ODx.50"IDx3.688"L Pipe
8700-22
10072
Drill Template - 2523ST
8700-23
10073
8700-24
10074
Spacer Kit for 3/4" & 7/8" U-Bolts - DWG 2809ST Includes:
(1) Spacer Plate - 2"x.188"x5.75"L - For 3/4" U-Bolts - 2492ST
(1) Spacer Plate - 2"x.250"x5.75"L - For 7/8" U-Bolts - 2491ST
Spacer - 1.25"ODx.75"IDx2.31"L Pipe
8700-26
10075
8700-27
10076
8700-28
10077
8700-29
8700-35
11052
11004
11003
11074
11005
13325
11005
13316
8755-AB
10078
Frame Crosstube w/ Bushings - 41.5" O.L. - 1124ST
8755-ABB
10079
Frame Crosstube w/ Bushings - 41.5" O.L. - 1124ST
8755-AK
10080
Frame Crosstube w/ Bushings - 41.5" O.L. - High Profile - 1568ST
8755-BE
10081
Frame Crosstube w/ Bushings - 41.5" O.L. - 7" Drop - 2555ST
8755-BEB
10082
Frame Crosstube w/ Bushings - 41.5" O.L. - 7" Drop - 2555ST
16915
Frame Crosstube w/ Bushings - 43.5" O.L. - 5" Drop - 7032ST
8700-03
10083
Bar/Arm Weldment - 2"x40.25" - 18.5" C/C Holes - 21.0" Arm Length - 1113ST
8700-03B
10084
Bar/Arm Weldment - 2"x40.25" - 18.5" C/C Holes - 21.0" Arm Length - 1113ST
8700-04
10085
Bar/Arm Weldment - 2"x43.75" - 18.5" C/C Holes - 21.0" Arm Length - 1114ST
8700-04B
10086
Bar/Arm Weldment - 2"x43.75" - 18.5" C/C Holes - 21.0" Arm Length - 1114ST
8700-05
10087
Bar/Arm Weldment - 2"x48.50" - 15.5" C/C Holes - 19.0" Arm Length - 1570ST
8700-06
10088
Bar/Arm Weldment - 2"x40.25" - 16.5" C/C Holes - 19.0" Arm Length - 1571ST
8700-06B
10089
Bar/Arm Weldment - 2"x40.25" - 16.5" C/C Holes - 19.0" Arm Length - 1571ST
8700-07
10090
Bar/Arm Weldment - 2"x41.50" - 18.5" C/C Holes - 22.0" Arm Length - 1120ST
8700-07B
10091
Bar/Arm Weldment - 2"x41.50" - 18.5" C/C Holes - 22.0" Arm Length - 1120ST
8700-08
10092
Bar/Arm Weldment - 2"x40.25" - 15.0" C/C Holes - 17.5" Arm Length - 1773ST
8700-08B
10093
Bar/Arm Weldment - 2"x40.25" - 15.0" C/C Holes - 17.5" Arm Length - 1773ST
8700-09
10094
Bar/Arm Weldment - 2"x43.50" - 14.0" C/C Holes - 17.13" Arm Length - 1839ST
8700-09B
10095
Bar/Arm Weldment - 2"x43.50" - 14.0" C/C Holes - 17.13" Arm Length - 1839ST
8700-31
8700-32
08/2014
Description
Spacer Kit - DWG 2809ST
(1) Spacer Plate - 2"x.188"x5.75"L for 3/4" U-Bolts - 2492ST
(1) Spacer Plate - 2"x.250"x5.75"L for 7/8" U-Bolts - 2491ST
(2) Spacers - 1.00"IDx1.50"ODx.9375"L Pipe
(1) Spacer Kit installation DWG 2809ST
Spacer Kit - DWG 2810ST
(2) 1.00"IDx1.50"ODx.25"L Pipe
(4) 5.0 Degree beveled spacers - 1.00"IDx1.50"ODx.375"L
(1) Spacer Kit installation DWG 2810ST
Spacer Kit - DWG 2810ST
(2) 1.00"IDx1.50"ODx1.75"L Pipe
(4) 5.0 Degree beveled spacers - 1.00"IDx1.50"ODx.375"L
(1) Spacer Kit installation DWG 2810ST
FAST - .50"-13x4.50"L Bolt w/ Washer & Nut
FAST - .75"-10x4.50"L Grade 8 Bolt & Nut
FAST - .75"-10x5.00"L Grade 8 Bolt & Nut
FAST - 1.0"-8x8.0"L Grade 8 Bolt Only
11
Torsion Bar Components List
Part Number
Item Number
08/2014
Description
8700-11
10096
Bar/Arm Weldment - 2"x27" Offset - 14.0" C/C Holes - 17.4" Arm Length - 2099ST
8700-11B
10097
Bar/Arm Weldment - 2"x27" Offset - 14.0" C/C Holes - 17.4" Arm Length - 2099ST
8700-17
10098
Bar/Arm Weldment - 2"x22" - 16.5" C/C Holes - 19.625" Arm Length - 2198ST
8700-17B
10100
Bar/Arm Weldment - 2"x22" - 16.5" C/C Holes - 19.625" Arm Length - 2198ST
8700-25
10101
Bar/Arm Weldment - 2"x41.5" - 13.75" C/C Holes - 16.875" Arm Length - 2789ST
8700-25B
10102
Bar/Arm Weldment - 2"x41.5" - 13.75" C/C Holes - 16.875" Arm Length - 2789ST
8700-30
10103
Bar/Arm Weldment - 2"x41.5" - 12.25" C/C Holes - 15.375" Arm Length - 3833ST
8700-30B
10104
Bar/Arm Weldment - 2"x41.5" - 12.25" C/C Holes - 15.375" Arm Length - 3833ST
8700-33B
10105
Bar/Arm Weldment - 2"x40.25" - 10.5" C/C Holes - 13.6" Arm Length - 4479ST
8700-34B
11257
Bar/Arm Weldment - 2"x48.50" - 10.5" C/C Holes - 13.6" Arm Length - 4730ST
14611
Bar/Arm Weldment - 2"x41.50" - 17.5" C/C Holes - 21.1" Arm Length - 5354ST
8750-02
10106
Bar/Arm Weldment - 2.5"x40.25" - 17.0" C/C Holes - 20.5" Arm Length - 1119ST
8750-02B
10107
Bar/Arm Weldment - 2.5"x40.25" - 17.0" C/C Holes - 20.5" Arm Length - 1119ST
8750-03
10108
Bar/Arm Weldment - 2.5"x41.50" - 18.5" C/C Holes - 22.0" Arm Length - 1572ST
8750-03B
10110
Bar/Arm Weldment - 2.5"x41.50" - 17.5" C/C Holes - 22.0" Arm Length - 1572ST
8750-04
10111
Bar/Arm Weldment - 2.5"x40.25" - 21.0" C/C Holes - 24.5" Arm Length - 1386ST
8750-05
10112
Bar/Arm Weldment - 2.5"x39.25" - 17.0" C/C Holes - 20.5" Arm Length - 1569ST
8750-05B
10113
Bar/Arm Weldment - 2.5"x39.25" - 17.0" C/C Holes - 20.5" Arm Length - 1569ST
8750-06
10114
Bar/Arm Weldment - 2.5"x40.25" - 15.0" C/C Holes - 18.5" Arm Length - 1580ST
8750-06B
10119
Bar/Arm Weldment - 2.5"x40.25" - 15.0" C/C Holes - 18.5" Arm Length - 1580ST
8750-07
10120
Bar/Arm Weldment - 2.5"x40.25" - 10.3" C/C Holes - 13.9" Arm Length - 4496ST
8735-AK
10121
Bar/Arm Weldment - 2.5"x39.125" - 34.625" C/C Holes - 37.125" Arm Length - 3579ST
8755-AD
10122
Bar/Arm Weldment - 2.5"x40.50" - 16.0" C/C Holes - 19.0" Arm Length - 1170ST
8755-ADB
10123
Bar/Arm Weldment - 2.5"x40.50" - 16.0" C/C Holes - 19.0" Arm Length - 1170ST
8755-AH
10124
Bar/Arm Weldment - 2.5"x40.25" - 16.0" C/C Holes - 19.0" Arm Length - 1573ST
8755-AL
10125
Bar/Arm Weldment - 2.5"x41.50" - 23.0" C/C Holes - 25.5" Arm Length - 1574ST
8755-ALB
10126
Bar/Arm Weldment - 2.5"x41.50" - 23.0" C/C Holes - 25.5" Arm Length - 1574ST
8755-AP
10127
Bar/Arm Weldment - 2.5"x35.00" - 22.5" C/C Holes - 25.5" Arm Length - 2581ST
8755-APB
10128
Bar/Arm Weldment - 2.5"x35.00" - 22.5" C/C Holes - 25.5" Arm Length - 2581ST
8755-AQ
10129
Bar/Arm Weldment - 2.5"x32.00" - 21.0" C/C Holes - 23.5" Arm Length - 2580ST
8755-AQB
10130
Bar/Arm Weldment - 2.5"x32.00" - 21.0" C/C Holes - 23.5" Arm Length - 2580ST
8755-AT
10131
Bar/Arm Weldment - 2.5"x33.00" - 25.5" C/C Holes - 28.0" Arm Length - 2585ST
8755-ATB
10132
Bar/Arm Weldment - 2.5"x33.00" - 25.5" C/C Holes - 28.0" Arm Length - 2585ST
8755-AW
10133
Bar/Arm Weldment - 2.5"x36.50" - 23.0" C/C Holes - 25.5" Arm Length - 2582ST
8755-AY
10134
Bar/Arm Weldment - 2.5"x35.00" - 19.5" C/C Holes - 22.0" Arm Length - 2584ST
8755-AYB
10135
Bar/Arm Weldment - 2.5"x35.00" - 19.5" C/C Holes - 22.0" Arm Length - 2584ST
8755-BA
10136
Bar/Arm Weldment - 2.5"x36.50" - 28.9" C/C Holes - 31.4" Arm Length - 2583ST
8755-BB
10137
Bar/Arm Weldment - 2.5"x33.00" - 22.4" C/C Holes - 24.9" Arm Length - 2586ST
8755-BBB
10138
Bar/Arm Weldment - 2.5"x33.00" - 22.4" C/C Holes - 24.9" Arm Length - 2586ST
8755-BG
10139
Bar/Arm Weldment - 2.5"x31.75" - 22.5" C/C Holes - 25.5" Arm Length - 2645ST
8755-BGB
10140
Bar/Arm Weldment - 2.5"x31.75" - 22.5" C/C Holes - 25.5" Arm Length - 2645ST
8755-BH
10141
Bar/Arm Weldment - 2.5"x34.00" - 25.0" C/C Holes - 27.5" Arm Length - 2844ST
12
Torsion Bar Components List
Part Number
Item Number
08/2014
Description
8755-BHB
10142
Bar/Arm Weldment - 2.5"x34.00" - 25.0" C/C Holes - 27.5" Arm Length - 2844ST
8755-BL
10143
Bar/Arm Weldment - 2.5"x38.75" - 28.5" C/C Holes - 31.0" Arm Length - 3009ST
8755-BLB
10144
Bar/Arm Weldment - 2.5"x38.75" - 28.5" C/C Holes - 31.0" Arm Length - 3009ST
8755-BP
10145
Bar/Arm Weldment - 2.5"x33.88" - 21.0" C/C Holes - 23.5" Arm Length - 3502ST
8755-BPB
10146
Bar/Arm Weldment - 2.5"x33.88" - 21.0" C/C Holes - 23.5" Arm Length - 3502ST
8755-BR
10147
Bar/Arm Weldment - 2.5"x40.50" - 21.0" C/C Holes - 23.5" Arm Length - 3504ST
8755-BRB
10148
Bar/Arm Weldment - 2.5"x40.50" - 21.0" C/C Holes - 23.5" Arm Length - 3504ST
8755-BT
10149
Bar/Arm Weldment - 2.5"x37.50" - 23.0" C/C Holes - 25.5" Arm Length - 3773ST
8755-BU
10150
Bar/Arm Weldment - 2.5"x32.00" - 22.0" C/C Holes - 24.5" Arm Length - 4511ST
8755-BX
13357
Bar/Arm Weldment - 2.5"x32.00" - 19.5" C/C Holes - 22.0" Arm Length - 4549ST
8755-BY
13359
Bar/Arm Weldment - 2.5"x34.00" - 23.9" C/C Holes - 26.4" Arm Length - 4618ST
8755-BZ
13361
Bar/Arm Weldment - 2.5"x36.50" - 18.5" C/C Holes - 21.0" Arm Length - 4854ST
8755-EC
13276
Bar/Arm Weldment - 2.5"x33.00" - 21.8" C/C Holes - 24.3" Arm Length - 5067ST
13673
Bar/Arm Weldment - 2.5"x40.25" - 30.3" C/C Holes - 32.8" Arm Length - 5111ST
14609
Bar/Arm Weldment - 2.5"x33.00" - 26.3" C/C Holes - 28.8" Arm Length - 5351ST
11910
Bar/Arm Weldment - 3"x40.50" - 16.0" C/C Holes - 19.0" Arm Length - 5322ST
14626
Bar/Arm Weldment - 2.5"x32.00" - 18.3" C/C Holes - 20.8" Arm Length - 5369ST
16911
Bar/Arm Weldment - 3.0"x42.50" - 23.0" C/C Holes - 26.5" Arm Length - 7027ST
17233
Bar/Arm Weldment - 2.5"x44.25" - 10.0" C/C Holes - 13.6" Arm Length -S1024ST
19178
Bar/Arm Weldment – 2.5”x41.50” - 13” C/C Holes – 16.625” Arm Length – 19178.SLDDRW
8700-AA
10151
Anchor Bracket - TB12 - 3110ST
8700-AAB
10152
Anchor Bracket - TB12 - 3110ST
8700-AB
10153
Anchor Bracket - TB12F - 2959ST
8700-AG
10154
Anchor Bracket - E351
8700-AN
10155
Anchor Bracket - 2965ST
8700-ANB
10156
Anchor Bracket - 2965ST
8750-AA
10157
Anchor Bracket - TB24 - 3109ST
8750-AAB
10158
Anchor Bracket - TB24 - 3109ST
8750-AB
10159
Anchor Bracket - SBC451 - 2960ST
8750-ABB
10160
Anchor Bracket - SBC451 - 2960ST
8750-AF
10161
Anchor Bracket - G567H
8750-AG
10162
Anchor Bracket - 52291 - 1558ST
8750-AGB
10163
Anchor Bracket - 52291 - 1558ST
8750-AI
10164
Anchor Bracket - TBFL - 3889ST
8750-AIB
11674
Anchor Bracket - TBFL - 3889ST
8750-AJ
10166
Anchor Bracket - UBF2-F - 4.50" C/C Holes
8750-AJB
10167
Anchor Bracket - UBF2-F - 4.50" C/C Holes
8750-AM
10168
Anchor Bracket - UBF2-C1 - 3.25" C/C Holes
8750-AMB
10169
Anchor Bracket - UBF2-C1 - 3.25" C/C Holes
8750-AQ
10170
Anchor Bracket - UBF2-C2 - 2.44" C/C Holes
8750-AQB
10171
Anchor Bracket - UBF2-C2 - 2.44" C/C Holes
13
Torsion Bar Components List
Part Number
Item Number
08/2014
Description
8750-AR
10172
Anchor Bracket - UBF2-F - 3.25" C/C Holes
8750-ARB
10173
Anchor Bracket - UBF2-F - 3.25" C/C Holes
8750-BO
10174
Anchor Bracket - NPRW - 3298ST
8750-BOB
10175
Anchor Bracket - NPRW - 3298ST
8750-BP
10176
Anchor Bracket - N4400 - 4497ST
8735-AH
10177
Anchor Bracket - 3577ST
8755-AA
10178
Anchor Bracket - UB8755 - 2454ST
8755-AAB
10179
Anchor Bracket - UB8755 - 2454ST
8755-AE
10180
Anchor Bracket - UBB1 - 1639ST
8755-AEB
10181
Anchor Bracket - UBB1 - 1639ST
8755-AI
10182
Anchor Bracket - 1577ST
8755-AIB
10183
Anchor Bracket - 1577ST
8755-AJ
10184
Anchor Bracket - 1578ST
8755-AM
10185
Anchor Bracket - 1844ST
8755-AO
10186
Anchor Bracket - 2567ST
8755-AOB
10187
Anchor Bracket - 3865ST
8755-AR
10188
Anchor Bracket - 2566ST
8755-ARB
10189
Anchor Bracket - 2566ST
8755-AS
10190
Anchor Bracket - 2572ST
8755-ASB
10191
Anchor Bracket - 2572ST
8755-AU
10192
Anchor Bracket - 2568ST
8755-AUB
10193
Anchor Bracket - 2568ST
8755-AV
10194
Anchor Bracket - 2569ST
8755-AX
10195
Anchor Bracket - 2570ST
8755-AZ
10196
Anchor Bracket - 2571ST
8755-AZB
10197
Anchor Bracket - 2571ST
8755-BCB
10198
Anchor Bracket - 2573ST
8755-BI
10199
Anchor Bracket w/ (4)-1.75"L + (4)-.50"L Pipe Spacers - 3001ST - Streetside
8755-BIB
10200
Anchor Bracket w/ (4)-1.75"L + (4)-.50"L Pipe Spacers - 3001ST - Streetside
8755-BJ
10201
Anchor Bracket w/ (4)-2.125"L + (4)-.50"L Pipe Spacers - 3001ST - Curbside
8755-BJB
10202
Anchor Bracket w/ (4)-2.125"L + (4)-.50"L Pipe Spacers - 3001ST - Curbside
8755-BO
10203
Anchor Bracket - 3501ST
8755-BOB
10204
Anchor Bracket - 3501ST
8755-BQ
10205
Anchor Bracket - 3525ST
8755-BQB
10206
Anchor Bracket - 3525ST
8755-BS
10207
Anchor Bracket - 3771ST
8755-BV
10208
Anchor Bracket - 4498ST
8755-BW
12998
Anchor Bracket - 4548ST
8755-EA
13010
Anchor Bracket - 4858ST - Streetside
8755-EB
13011
Anchor Bracket - 4858ST - Curbside
13672
Anchor Bracket - 5113ST
14802
Anchor Bracket w/ Spacer - Modified UB8755 - 5375ST
14
Torsion Bar Components List
Part Number
Item Number
08/2014
Description
15107
Anchor Bracket w/ Pipe Spacers - 5535ST
15134
Anchor Bracket - 5550ST
16912
Anchor Bracket - 7034ST - Curbside
16914
Anchor Bracket - 7037ST - Streetside
17234
Anchor Bracket - S1022ST
8700-AC
10209
Frame Bracket w/ Insert - FTBD
8700-AE
10210
Frame Bracket w/ Insert - TB13
8700-AF
10211
Frame Bracket w/ Insert - E350 - 2.0", 10.50" Center Bar to Bracket End - 2209ST
8700-AI
10212
Frame Bracket w/ Insert - E350 - 2.0", 8.75" Center Bar to Bracket End (cutoff) - 2209ST
8700-AJ
10213
Frame Bracket w/ Insert - UBFR8705 - 2453ST
8700-AK
10214
Frame Bracket w/ Insert - UBFL8705 - 2453ST
8700-AL
10215
Frame Bracket w/ Insert - UBFHD35R - 2208ST
8700-AM
10216
Frame Bracket w/ Insert - UBFHD35L - 2208ST
8700-AH
10217
Frame Bracket w/ Insert - SBC450 - 2.0"
8705-AA
10218
Frame Bracket w/ Insert - 1576ST
8705-AAB
10219
Frame Bracket w/ Insert - 1576ST
8705-AB
10220
Frame Bracket w/ Insert - 2577ST
8705-AC
10221
Frame Bracket w/ Insert - 3002ST - Streetside
8705-ACB
10222
Frame Bracket w/ Insert - 3002ST - Streetside
8705-AD
10223
Frame Bracket w/ Insert - 3002ST - Curbside
8705-ADB
13012
Frame Bracket w/ Insert - 3002ST - Curbside
8735-AI
10224
Frame Bracket - 5159ST - Curbside
8735-AJ
10226
Frame Bracket - 5158ST - Streetside
8750-AC
10227
Frame Bracket w/ Insert - LGMTBF
8750-AD
10228
Frame Bracket w/ Insert - NSTB - 2507ST
8750-AE
10229
Frame Bracket w/ Insert - SBC450 - 2.5"
8750-AH
10230
Frame Bracket w/ Insert & Gr.8 Clamp Bolts - TBC1/TBC2/TBC3
8750-AK
10231
Frame Bracket w/ Insert - 2575ST
8750-AKB
10232
Frame Bracket w/ Insert - 3864ST
8750-AL
12978
Frame Bracket - 2574ST
8750-ALB
12962
Frame Bracket - 2574ST
8750-AN
10235
Frame Bracket w/ Insert - 2579ST
8750-ANB
10236
Frame Bracket w/ Insert - 2579ST
8750-AO
10237
Frame Bracket w/ Insert - 2576ST
8750-AP
10238
Frame Bracket w/ Insert - 2578ST
8750-APB
10239
Frame Bracket w/ Insert - 2578ST
8750-AS
10240
Frame Bracket w/ Insert - 2843ST
8750-ASB
10241
Frame Bracket w/ Insert - 3868ST
8750-AT
10242
Frame Bracket w/ Insert - 3500ST
8750-ATB
10243
Frame Bracket w/ Insert - 3500ST
8750-AU
10244
Frame Bracket w/ Insert - 3772ST
15
Torsion Bar Components List
Part Number
Item Number
08/2014
Description
8750-AV
10245
Frame Bracket w/ Insert - E350 - 2.5", 8.75" Center Bar to Bracket End (cutoff) - 2209ST
8750-AW
10246
Frame Bracket w/ Insert - 4509ST
8750-AX
13013
Frame Bracket w/ Insert - 4617ST
8750-BQ
12956
Frame Bracket w/ Insert - 4855ST
8750-BS
12825
Frame Bracket w/ Insert - 5061ST
8750-BU
13275
Frame Bracket - 5065ST
15160
Frame Bracket w/ Insert - 5579ST
15733
Frame Bracket w/ Insert - 5936ST
8700-10
10247
Driver Sleeve
RSD-80107D
10248
Drill Bit - 1.109" w/ 3" Flute - .50" Shank
RQS-38560K
10249
Reamer - Preset at 1.135" - .50" Shank
16
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Model: 8755-C4
1. Remove spring set U-bolt nuts and install Sauber attachment bracket over existing axle bracket. Longer U-bolts may
be required and are generally available through a local spring shop. Torsion bar weldment should be directed towards chassis rear. To this point lock nuts should be loose around the urethane bushings at each end of the arm and
at the crosstube.
2. Torque spring set U-bolts.
3. Position square crosstube at underside of frame with toggle links close to vertical. Maximum toggle link deflection is 12
degrees either side of vertical.
4. Install frame clamps using fasteners provided. Clamp is notched to allow installation if crossmember frame
forcement is present. Torque frame clamp nuts.
rein-
5. Torque lock nuts at spring anchor brackets, toggle links and crosstube.
17
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Model: 8755-NE
1. Remove spring set U-bolt nuts and install Sauber anchor bracket over existing axle bracket. Longer U-bolts may
be required and are generally available through a local spring shop. Torsion bar should be directed towards
chassis front. Note that the four long spacers mount with the streetside anchor bracket and the four short spacers
mount with the curbside anchor bracket. To this point, lock nuts should be loose around the toggle link urethane
bushings.
2. Remove and discard the front spring set hanger bolt, saving the nuts for re-use later. With the frame bracket adjustment bolts loose, install the frame brackets using the provided bolts and existing nuts and washers. Complete
this operation one side at time, taking care to ensure the spring set's stability relative to the chassis frame. (A
temporary spacer may be used between the bottom of the frame and the top of the spring set for this purpose).
3. Make sure the arm/bar weldment is centered on the chassis and that both toggle links are vertical when viewed
from the front of the chassis.
4. Torque spring set U-bolts and front spring set hanger bolts.
5. Torque frame bracket adjustment bolts.
6. Torque lock nuts at toggle links
18
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8700-F2B, 8700-F5B, 8700-F8, 8750-F4B & 8750-F5B
1.
.All except 8700-F5B: Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber spring anchor
bracket. To this point lock nuts should be loose around the toggle link urethane bushings.
8700-F5B: Remove the spring set U-bolt nuts and install Sauber anchor bracket over exsting axle bracket.. Reinstall the
sprng set U-bolt nuts.
2.
Torque spring set U-bolts.
3.
Remove the top two rivets from front factory spring overload bracket. Drill out the factory bracket and frame to 17/32". Temporarily install (2) 1/2" bolts in these holes. Remove the bottom two rivets from the factory spring overload bracket and drill out
the bracket and frame to 17/32". Position bronze frame mounting bracket over factory overload bracket and install (4) bolts
per bracket using flat washers between frame mounting bracket and bolt head and between frame and lock nuts. Torque
frame mounting bracket nuts.
4.
Torque bearing cap fasteners.
5.
Torque lock nuts at toggle links.
19
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8755-F6B, 8755-F9, 8755-N3B & 8755-N6B
1. Remove the nuts from the spring set U-bolts, saving them for re-use later. Install axle anchor brackets under the leaf
springs and in front of the axle using the existing U-bolts, nuts and washers.
2. Remove and discard front spring set pinch bolts, saving the nuts for re-use later. Install frame brackets using existing
bolts unless new ones are provided and existing nuts and washers.
3. Torque spring set U-bolts and front spring set pinch bolts.
4. Torque lock nuts at toggle links.
20
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8750-C2B, 8750-C3B, 8750-B & 8750-L1B
1. Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber spring anchor bracket. To
this point lock nuts should be loose around the toggle link urethane bushings.
2. Torque spring set U-bolts.
3. Position Sauber frame mounting brackets along top frame rail making sure the links are perpendicular to the chassis frame. Fasten frame clamp bracket with (2) bolts each side using flat washers between castings and bolt
heads and lock nuts. On units with reinforced frames, a spacer may be required to bring the frame mounting
brackets to a position parallel with the bar.
4. Torque bearing cap fasteners.
5. Torque lock nuts at toggle links.
21
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8705-F2B, 8705-F9B, & 8705-FA
1.
Remove spring set U-bolt nuts and install Sauber anchor bracket over existing axle bracket. Longer U-bolts
may be required and are generally available through a local spring shop.. Torsion bar should be directed towards chassis rear. To this point lock nuts should be loose around the toggle link urethane bushings.
Model 8705-F9B 4WD: The existing stabilizer and curbside mounting bracket should be removed. Install provided pipe spacers as indicated on drawing between Sauber anchor bracket and existing axle bracket making
sure that the anchor bracket bar attachment point is installed toward the outside of the chassis. Use 2-1/8"
spacers with curbside bracket and 1-3/4" spacers with streetside bracket.
Model 8705-F9B 2WD The existing stabilizer and both the curbside and streetside mounting brackets should
be removed. Install provided pipe spacers as indicated on drawing between Sauber anchor bracket and existing axle bracket making sure that the anchor bracket bar attachment point is installed toward the outside of
the chassis. Use 1/2" spacers with curbside and streetside brackets.
2.
Torque spring set U-bolts.
3.
8705-F2B & 8705-FA: Remove bolt from rear spring attachment bracket. Slide Sauber frame bracket under
spring attachment brackets and re-install bolt. Torque rear spring attachment bracket nut.
8705-F9B: Install Sauber frame bracket with (4) .50"-13 x 2" fasteners and lock nuts through existing holes in
the chassis frame web and flange, making sure that the toggle link attachment point is mounted toward the
outside of the chassis.
Torque lock nuts at spring anchor brackets, toggle links and frame mounting bracket.
22
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8755-C2B, 8755-C5 & 8755-C7
1. Remove factory provided rear stabilizer bar if present. Disconnect fastener set at spring attachment bracket
and leave bracket in place. Remove rear frame attachment bracket, bar and linkage.
2. Remove spring set U-bolt nuts and install Sauber attachment bracket over existing axle bracket. If shock absorbers are present, the included spacer plates are not required. On units without shock absorbers, install the
spacer plates between the existing axle clamp bracket and the Sauber attachment bracket. Longer U-bolts
may be required on some chassis and are generally available through a local spring shop. Torsion bar weldment should be directed towards chassis rear. To this point lock nuts should be loose around the urethane
bushings at each end of the arm and at the crosstube.
3. Torque spring set U-bolts. Ensure that manufacturer's spring anchor bracket has a flat profile. If not, the
chassis bracket must be machined flat prior to installation to avoid damage to the anchor bracket.
4. Position square crosstube at underside of frame with toggle links close to vertical. Maximum toggle link deflection is 12 degrees either side of vertical.
5. Install frame clamps using fasteners provided. Clamp is notched to allow installation if crossmember frame
reinforcement is present. Torque frame clamp nuts.
6. Torque lock nuts at spring anchor brackets, toggle links and crosstube
23
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8755-F1B, 8755-F7B, 8755-L1B, 8755-L2B, &
8755-N5B
1. Remove the nuts from the spring set U-bolts, saving them for re-use later. Install axle anchor brackets below the
leaf springs and in front of the axle using the existing U-bolts and nuts.
2. Remove and discard the front spring set hanger bolt, saving the nuts for re-use later. Install the frame brackets
using the provided bolts and existing nuts and washers, making sure the bracket offset is to the outside of the
chassis for Model 8755-F1B bars. For Model 8755-N5B bars, the rounded side of the frame bracket should be
mounted to the inside of the chassis. For Model 8755-L1B and 8755-L2B bars, the tapered side of the frame
bracket shoud be mounted to the inside of the chassis. Complete this operation one side at time, taking care to
ensure the spring set's stability relative to the chassis frame. (A temporary spacer may be used between the bottom of the frame and the top of the spring set for this purpose).
3. Torque spring set U-bolts and front spring set hanger bolts.
4. Torque lock nuts at toggle links.
24
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8755-NA, 8755-ND, 8755-FB, 8755-FC, 8755-C3 &
8755-C6
1. Remove the nuts from the spring set U-bolts, saving them for re-use later. Install axle anchor brackets below the
leaf springs and in front of the axle using the existing U-bolts and nuts.
2. Remove the front spring set hanger bolts, saving the bolts and nuts for re-use later. With the frame bracket adjustment bolts loose, install the frame brackets using the existing bolts and nuts without the washers. For Model
8755-FB, 8755-FC, 8755-NA and 8755-ND bars, the tapered side of the frame bracket should be mounted to the
inside of the chassis. For Model 8755-C3 and 8755-C6 bars, the round boss side of the frame bracket should be
mounted to the inside of the chassis. Complete this operation one side at time, taking care to ensure the spring
set's stability relative to the chassis frame. (A temporary spacer may be used between the bottom of the frame
and the top of the spring set for this purpose).
3. Torque spring set U-bolts and front spring set hanger bolts.
4. Torque frame bracket adjustment bolts.
5. Torque lock nuts at toggle links.
25
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8700-CB, 8700-C1B, 8700-C3B, 8700-C4B, 8700-C5B,
8700-C6B, 8750-CFB, 8750-C4, 8700-FB, 8700-F3B, 8700-F4B,
8700-F6B, 8700-F7, 8700-DB, 8700-D1B, 8750-NB, 8750-N1 &
8750-N2
1. All except 8700-F6B: Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber spring
anchor bracket. To this point lock nuts should be loose around the toggle link urethane bushings.
8700-F6B: Remove the spring set U-bolt nuts and install Sauber anchor bracket over exsting axle bracket.. Reinstall the sprng set U-bolt nuts.
2. Torque spring set U-bolts.
3. Frame mounting brackets on Models 8700-C1B, 8700-C2B, 8700-C3B, 8700-C5B, 8700-C6B, 8700-D1B, 8700F3B, 8700-F4B, 8700-F6B, 8700-F7, 8750-C4, 8750-N1 and 8750-N2 Torsion Bars mount on chassis frame in the
area between the chassis spring bracket and the axle. For all other bars, remove and discard chassis spring
overload brackets.
4. Install Sauber frame mounting brackets maintaining 1/4" clearance above the chassis frame. Position frame
mounting bracket with toggle links close to vertical. Maximum toggle link deflection is 12 degrees either side of
vertical.
5. Clamp frame mounting bracket while drilling holes from inside frame. Fasten with (4) bolts each side using flat
washers between casting and bolt head and between frame and lock nuts. Torque frame mounting bracket nuts.
6. Torque bearing cap fasteners.
7. Torque lock nuts at toggle links.
26
Torsion Bar Installation Instructions
Rev.03/2014
Page 1 of 1
Models: 8755-F8B, 8755-L3 & 8755-S1
1. Remove spring set U-bolt nuts and install Sauber attachment bracket over existing axle bracket.
Model 8755-F8B is provided with (4) loose spacers for each anchor bracket. Install (1) spacer at each u-bolt
location on units with no shock absorbers. For units with shock absorbers install (2) spacers at each of the
two forward u-bolt locations.
Model 8755-L3 requires (2) 1-3/4"L spacers and (1) 1/2"L spacer. One u-bolt location will not have a spacer.
Install spacers as shown in the installation drawing.
Model 8755-S1 requires curbside and streetside specific anchor brackets. Attachment ears need to be offset
toward outside of chassis.
Longer U-bolts may be required on some chassis and are generally available through a local spring shop.
Torsion bar weldment should be directed towards chassis rear. To this point lock nuts should be loose
around the urethane bushings at each end of the arm and at the crosstube.
2. Torque spring set U-bolts.
3. Position square crosstube at underside of frame with toggle links close to vertical. Maximum toggle link deflection is 12 degrees either side of vertical.
4. Install frame clamps using fasteners provided. Clamp is notched to allow installation if crossmember frame
reinforcement is present. Torque frame clamp nuts.
Torque lock nuts at spring anchor brackets, toggle links and crosstube.
27
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 2
Models: 8755-B, 8755-N1B, 8755-N2B, 8755-N7B, 8755-N8B,
8755-NC, 8755-NH, 8755-F2B, 8755-F3B, 8755-F4B, &
8755-F5B
1. Remove spring set U-bolt nuts and install Sauber attachment bracket over existing axle bracket. Longer U-bolts may be
required on some chassis and are generally available through a local spring shop. Torsion bar weldment should be directed towards chassis rear. If the attachment bracket is equipped with two holes, one located at the bracket center and
one at the bracket end, it can be reversed to mount bar 5 1/2" forward if obstructions are encountered. If the bar weldment must be mounted in the center hole, allow a minimum of .750" of clearance between the top of the arm and the casting bottom with the chassis unloaded. If this clearance is not available, contact Sauber Mfg. Co. for longer links for your
application. To this point lock nuts should be loose around the urethane bushings at each end of the arm and at the
crosstube.
Notes:
Model 8755-B cannot be installed on a Freightliner with air
brakes.
2.
Torque spring set U-bolts. Navistar series 4000 chassis do not have flat axle brackets. For these chassis install the
shims provided between the chassis axle bracket and the torsion bar anchor bracket to level each side. A 3/16" thick
spacer is required for 3/4" Dia U-bolts and a 1/4" spacer is required for 7/8" Dia U-bolts. Both are provided w/ part #
10073.
3.
Position square crosstube at underside of frame with toggle links close to vertical. Maximum toggle link deflection is 12
degrees either side of vertical.
4.
Install frame clamps using fasteners provided. Clamp is notched to allow installation if crossmember frame reinforcement
is present. Torque frame clamp nuts.
Torque lock nuts at spring anchor brackets, toggle links and crosstube.
28
Torsion Bar Installation Instructions - Spacer Detail
Rev. 03/2014
Page 2 of 2
Models: 8755-N1B, 8755-N2B, 8755-N7B, 8755-N8B, 8755F2B, 8755-F3B, 8755-F4B & 8755-F5B
29
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Model: 8705-C4B
1. Remove and discard factory installed stabilizer bar if present.
2. Drill out stabilizer bracket mounting holes to .656" and install anchor brackets with .625"-11 x 3" fasteners and
lock nuts.
3. Install frame mounting brackets to chassis front. Position frame mounting bracket with toggle links close to
vertical. Maximum toggle link deflection is 12 degrees either side of vertical.
4. Clamp frame mounting bracket while drilling holes from the outside of the tubular frame. Drill out the existing
frame hole to .75" and position the drill template on the outside of the frame with the "boss" seated into this
hole.
5. Drill .25" holes through the inside and outside walls of the frame and the clamped frame mounting bracket at
the (3) drill template locations. Remove the drill template and drill out only the (3) .250" holes through the outside frame wall to .75". Drill out the (3) .25" holes through the inside frame wall and the frame mounting
bracket to .531".
6. Fasten the frame mounting bracket with (3) .50"-13 x 5.50" grade 8 bolts and (3) .75"OD x .50"ID x 3.688"L
spacers provided each side using flat washers between frame and bolt head and between casting and lock
nuts. Torque frame mounting bracket nuts.
7. Torque bearing cap fasteners.
8. Torque lock nuts at toggle links.
30
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Model: 8705-F4B
1. Remove and discard factory installed stabilizer bracket if present.
2. Drill out curbside stabilizer bracket holes to .656" and install anchor bracket with .625" fasteners and spacers
provided.
3. Install streetside anchor bracket with U-bolt provided.
4. Install frame mounting brackets to chassis front. Note that frame bracket castings have specific shapes that
match frame taper. Position frame mounting bracket with toggle links close to vertical. Maximum toggle link
deflection is 12 degrees either side of vertical.
5. Clamp frame mounting bracket while drilling holes from inside frame. Fasten with (3) .625" fasteners each
side using flat washers between casting and bolt head and between frame and lock nuts. Torque frame
mounting bracket nuts.
6. Torque bearing cap fasteners.
7. Torque lock nuts at toggle links.
31
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Model: 8755-N4B
1. Remove and save the nuts from the forward facing, rear axle U-bolt and from the two pin-retainer bolts on the
U-bolt bracket. Discard only the U-bolt washers. Install axle anchor brackets onto the four point mount using
the existing fasteners.
2. Remove and discard the lower spring hanger retainer bolts, saving the nuts for re-use later. Install frame
brackets using the provided bolts and existing nuts and washers.
3. Torque spring hanger bracket retainer bolts. Loosen nuts on rear facing U-bolts and re-torque all spring set
U-bolts to maintain level U-bolt bracket attitude.
4. Torque lock nuts at toggle links.
32
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8700-C, 8700-C1, 8700-C2, 8700-C3, 8700-C4, 8750CF, 8700-F, 8700-F1, 8700-F3, 8700-F4, 8700-F6, 8700-D,
8700-D1 & 8750-N
1. All except 8700-F6: Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber
spring anchor bracket. To this point lock nuts should be loose around the toggle link rubber bushings.
8700-F6: Remove the spring set U-bolt nuts and install Sauber anchor bracket over exsting axle bracket.. Reinstall the sprng set U-bolt nuts.
2. Torque spring set U-bolts.
3. Frame mounting brackets on Models 8700-C1, 8700-C2, 8700-C3, 8700-D1, 8700-F3, 8700-F4 and 8700-F6
Torsion Bars mount between on chassis frame in the area between the chassis spring bracket and the axle.
For all other bars, remove and discard chassis spring overload brackets.
4. Install Sauber frame mounting brackets maintaining 1/4" clearance above the chassis frame. Position frame
mounting bracket with toggle links close to vertical. Maximum toggle link deflection is 12 degrees either side of
vertical.
5. Clamp frame mounting bracket while drilling holes from inside frame. Fasten with (4) bolts each side using flat
washers between casting and bolt head and between frame and lock nuts. Torque frame mounting bracket
nuts.
6. Torque bearing cap fasteners.
7. Torque lock nuts at toggle links.
33
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8700-F2, 8700-F5, 8750-F4 & 8750-F5
1. All except 8700-F5: Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber
spring anchor bracket. To this point lock nuts should be loose around the toggle link rubber bushings.
8700-F5: Remove the spring set U-bolt nuts and install Sauber anchor bracket over exsting axle bracket..
Reinstall the sprng set U-bolt nuts.
2. Torque spring set U-bolts.
3. Remove top two rivets from factory spring overload bracket. Drill out the factory bracket and frame to 17/32".
Temporarily install (2) 1/2" bolts in these holes. Remove the bottom two rivets from the factory spring overload bracket and drill out the bracket and frame to 17/32". Position bronze frame mounting bracket over factory overload bracket and install (4) bolts per bracket using flat washers between frame mounting bracket and
bolt head and between frame and lock nuts. Torque frame mounting bracket nuts.
4. Torque bearing cap fasteners.
5. Torque lock nuts at toggle links.
34
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8750-C2, 8750-C3, 8750 & 8750-L1
1. Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber spring anchor bracket.
To this point lock nuts should be loose around the toggle link rubber bushings.
2. Torque spring set U-bolts.
3. Position Sauber frame mounting brackets along top frame rail making sure the links are perpendicular to the
chassis frame. Fasten frame clamp bracket with (2) bolts each side using flat washers between castings and
bolt heads and lock nuts. On units with reinforced frames, a spacer may be required to bring the frame
mounting brackets to a position parallel with the bar.
4. Torque bearing cap fasteners.
5. Torque lock nuts at toggle links.
35
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Model: 8735-F1
1. Remove the existing stabilizer and both the curbside and streetside mounting brackets.
2. Loosen spring set U-bolts and install the anchor brackets provided between axle and spring set with the
arm/bar weldment facing rearward of front axle, making sure that the studs and holes in the leaf springs, the
anchor bracket, and the axle line up and seat completely. Longer U-bolts may be required and are generally
available at a local spring shop. To this point lock nuts should be loose around the toggle link rubber bushings.
3. Torque spring set U-bolts.
4. Install Sauber frame mounting brackets by lining up holes in frame brackets with existing holes in chassis
frame rails. Toggle links should be very near vertical if correct holes are used. Fasten with (3) 1/2"-13 x 2"
long grade 8 bolts each side using flat washers between bracket and bolt head and between frame and lock
nuts. Torque frame mounting bracket nuts.
5. Torque lock nuts at spring anchor bracket and toggle links.
36
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 2
Models: 8705-C2, 8705-C3, 8755, 8755-N1, 8755-N2, 8755-N7,
8755-N8, 8755-F2, 8755-F3, 8755-F4, 8755-F5 & 8755-F8
1. Remove spring set U-bolt nuts and install Sauber attachment bracket over existing axle bracket. Longer U-bolts may be
required on some chassis and are generally available through a local spring shop. Torsion bar weldment should be directed towards chassis rear. If the attachment bracket is equipped with two holes, one located at the bracket center and
one at the bracket end, it can be reversed to mount bar 5 1/2" forward if obstructions are encountered. If the bar weldment must be mounted in the center hole, allow a minimum of .750" of clearance between the top of the arm and the casting bottom with the chassis unloaded. If this clearance is not available, contact Sauber Mfg. Co. for longer links for your
application. To this point lock nuts should be loose around the rubber bushings at each end of the arm and at the
crosstube.
Notes:
Model 8705-C2 & 8705-C3 cannot be installed on a chassis with
rear tanks.
Model 8755 cannot be installed on a Freightliner with air brakes.
2.
Torque spring set U-bolts. Navistar series 4000 chassis do not have flat axle brackets. For these chassis install the
shims provided between the chassis axle bracket and the torsion bar anchor bracket to level each side. A 3/16" thick
spacer is required for 3/4" Dia U-bolts and a 1/4" spacer is required for 7/8" Dia U-bolts. Both are provided w/ part #
10073. Model 8755-F8 is provided with (4) loose spacers for each anchor bracket. Install (1) spacer at each u-bolt location on units with no shock absorbers. For units with shock absorbers install (2) spacers at each of the two forward u-bolt
locations.
3.
Position square crosstube at underside of frame with toggle links close to vertical. Maximum toggle link deflection is 12
degrees either side of vertical.
4.
Install frame clamps using fasteners provided. Clamp is notched to allow installation if crossmember frame reinforcement
is present. Torque frame clamp nuts.
5.
Torque lock nuts at spring anchor brackets, toggle links and crosstube.
37
Torsion Bar Installation Instructions - Spacer Detail
Rev. 03/2014
Page 2 of 2
Models: 8755-N1, 8755-N2, 8755-N7, 8755-N8, 8755-F2, 8755F3, 8755-F4 & 8755-F5
38
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Model: 8755-N9
1. Remove spring set U-bolt nuts and install Sauber anchor bracket over existing axle bracket. Longer U-bolts
may be required and are generally available through a local spring shop. Torsion bar should be directed towards chassis front. To this point, lock nuts should be loose around the toggle link urethane bushings.
2. Torque spring set U-bolts.
3. Remove front bumper and both front tow hooks. Install Sauber frame bracket with tow hooks on top of the
frame bracket using (8) 1/2"-13 Grade 8 bolts x 2-1/2" long through the existing tow hook mounting holes in
the frame.
4. Relocate front air brake valves (if necessary) to top side of OEM bracket to allow room for frame bracket
5. Torque lock nuts at anchor brackets, toggle links and frame mounting bracket
6. Replace front bumper.
39
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8705-F2 & 8705-F9
1. Remove spring set U-bolt nuts and install Sauber anchor bracket over existing axle bracket. Longer U-bolts
may be required and are generally available through a local spring shop.. Torsion bar should be directed towards chassis rear. To this point lock nuts should be loose around the toggle link rubber bushings.
Model 8705-F9 4WD: The existing stabilizer and curbside mounting bracket should be removed. Install provided pipe spacers as indicated on drawing between Sauber anchor bracket and existing axle bracket making
sure that the anchor bracket bar attachment point is installed toward the outside of the chassis. Use 2-1/8"
spacers with curbside bracket and 1-3/4" spacers with streetside bracket.
Model 8705-F9 2WD The existing stabilizer and both the curbside and streetside mounting brackets should
be removed. Install provided pipe spacers as indicated on drawing between Sauber anchor bracket and existing axle bracket making sure that the anchor bracket bar attachment point is installed toward the outside of
the chassis. Use 1/2" spacers with curbside and streetside brackets.
2. Torque spring set U-bolts.
3. 8705-F2: Remove bolt from rear spring attachment bracket. Slide Sauber frame bracket under spring attachment brackets and re-install bolt. Torque rear spring attachment bracket nut.
8705-F9: Install Sauber frame bracket with (4) .50"-13 x 2" fasteners and lock nuts through existing holes in
the chassis frame web and flange, making sure that the toggle link attachment point is mounted toward the
outside of the chassis.
4. Torque lock nuts at spring anchor brackets, toggle links and frame mounting bracket.
40
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Model: 8705-C4
1. Remove and discard factory installed stabilizer bar if present.
2. Drill out stabilizer bracket mounting holes to .656" and install anchor brackets with .625"-11 x 3" fasteners and
lock nuts.
3. Install frame mounting brackets to chassis front. Position frame mounting bracket with toggle links close to
vertical. Maximum toggle link deflection is 12 degrees either side of vertical.
4. Clamp frame mounting bracket while drilling holes from the outside of the tubular frame. Drill out the existing
frame hole to .75" and position the drill template on the outside of the frame with the "boss" seated into this
hole.
5. Drill .25" holes through the inside and outside walls of the frame and the clamped frame mounting bracket at
the (3) drill template locations. Remove the drill template and drill out only the (3) .250" holes through the outside frame wall to .75". Drill out the (3) .25" holes through the inside frame wall and the frame mounting
bracket to .531".
6. Fasten the frame mounting bracket with (3) .50"-13 x 5.50" grade 8 bolts and (3) .75"OD x .50"ID x 3.688"L
spacers provided each side using flat washers between frame and bolt head and between casting and lock
nuts. Torque frame mounting bracket nuts.
7. Torque bearing cap fasteners.
8. Torque lock nuts at toggle links.
41
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Model: 8705-F4
1. Remove and discard factory installed stabilizer bracket if present.
2. Drill out curbside stabilizer bracket holes to .656" and install anchor bracket with .625" fasteners and spacers
provided.
3. Install streetside anchor bracket with U-bolt provided.
4. Install frame mounting brackets to chassis front. Note that frame bracket castings have specific shapes that
match frame taper. Position frame mounting bracket with toggle links close to vertical. Maximum toggle link
deflection is 12 degrees either side of vertical.
5. Clamp frame mounting bracket while drilling holes from inside frame. Fasten with (3) .625" fasteners each
side using flat washers between casting and bolt head and between frame and lock nuts. Torque frame
mounting bracket nuts.
6. Torque bearing cap fasteners.
7. Torque lock nuts at toggle links.
42
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Model: 8755-C2
1. Remove factory provided rear stabilizer bar if present. Disconnect fastener set at spring attachment bracket
and leave bracket in place. Remove rear frame attachment bracket, bar and linkage.
2. Remove spring set U-bolt nuts and install Sauber attachment bracket over existing axle bracket. If shock absorbers are present, the beveled spacers are not required. On chassis without shock absorbers, install the
beveled spacers between the existing axle clamp bracket and the Sauber attachment bracket. Longer U-bolts
may be required on some chassis and are generally available through a local spring shop. Torsion bar weldment should be directed towards chassis rear. To this point lock nuts should be loose around the rubber
bushings at each end of the arm and at the crosstube.
3. Torque spring set U-bolts. Ensure that manufacturer's spring anchor bracket has a flat profile. If not, the
chassis bracket must be machined flat prior to installation to avoid damage to the anchor bracket.
4. Position square crosstube at underside of frame with toggle links close to vertical. Maximum toggle link deflection is 12 degrees either side of vertical.
5. Install frame clamps using fasteners provided. Clamp is notched to allow installation if crossmember frame
reinforcement is present. Torque frame clamp nuts.
6. Torque lock nuts at spring anchor brackets, toggle links and crosstube.
43
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8755-F1, 8755-F7, 8755-L1, 8755-L2 & 8755-N5
1. Remove the nuts from the spring set U-bolts, saving them for re-use later. Install axle anchor brackets below
the leaf springs and in front of the axle using the existing U-bolts and nuts.
2. Remove and discard the front spring set hanger bolt, saving the nuts for re-use later. Install the frame brackets
of the
using the provided bolts and existing nuts and washers, making sure the bracket offset is to the outside
chassis for Model 8755-F1 bars. For Model 8755-N5 bars, the rounded side of the frame bracket
should be mounted to the inside of the chassis. For Model 8755-L1 & 8755-L2 bars, the tapered side of the
frame bracket shoud be mounted to the inside of the chassis. Complete this operation one side at time, taking care to ensure the spring set's stability relative to the chassis frame. (A temporary spacer may be used
between the bottom of the frame and the top of the spring set for this purpose).
3. Torque spring set U-bolts and front spring set hanger bolts.
4. Torque lock nuts at toggle links.
44
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Models: 8755-F6, 8755-N3 & 8755-N6
1. Remove the nuts from the spring set U-bolts, saving them for re-use later. Install axle anchor brackets under
the leaf springs and in front of the axle using the existing U-bolts, nuts and washers.
2. Remove and discard front spring set pinch bolts, saving the nuts for re-use later. Install frame brackets using
provided .50" bolts and existing nuts and washers.
3. Torque spring set U-bolts and front spring set pinch bolts.
4. Torque lock nuts at toggle links.
45
Torsion Bar Installation Instructions
Rev. 03/2014
Page 1 of 1
Model: 8755-N4
1. Remove and save the nuts from the forward facing, rear axle U-bolt and from the two pin-retainer bolts on the
U-bolt bracket. Discard only the U-bolt washers. Install axle anchor brackets onto the four point mount using
the existing fasteners.
2. Remove and discard the lower spring hanger retainer bolts, saving the nuts for re-use later. Install frame
brackets using the provided bolts and existing nuts and washers.
3. Torque spring hanger bracket retainer bolts. Loosen nuts on rear facing U-bolts and re-torque all spring set
U-bolts to maintain level U-bolt bracket attitude.
4. Torque lock nuts at toggle links.
46
Torsion Bar Installation Instructions
Rev. 08/2014
Page 1 of 1
Models: 8750-D1
1. Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber spring anchor bracket.
To this point lock nuts should be loose around the toggle link rubber bushings.
2. Torque spring set U-bolts.
3. Frame mounting brackets mount between on chassis frame in the area between the chassis spring bracket
and the axle.
4. Install Sauber frame mounting brackets maintaining 1/4" clearance above the chassis frame. Position frame
mounting bracket with toggle links close to vertical. Maximum toggle link deflection is 12 degrees either side of
vertical.
5. Clamp frame mounting bracket while drilling holes from inside frame. Fasten with (4) bolts each side using flat
washers between casting and bolt head and between frame and lock nuts. Torque frame mounting bracket
nuts.
6. Torque bearing cap fasteners.
7. Torque lock nuts at toggle links and anchor bracket to 100 ft-lbs.
47
Torsion Bar Installation Instructions
Rev. 08/2014
Page 1 of 1
Model 8750-F6 for F-450 & F-550 Chassis
1. Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber spring anchor bracket.
To this point lock nuts should be loose around the toggle link rubber bushings. Top end of leaf spring centering bolt may need to be cut down to avoid interference with bottom side of Sauber spring anchor bracket.
2. Torque 3/4” diameter spring set U-bolts to 395 ft-lbs or as directed by Ford.
3. Frame mounting brackets mount to chassis frame in the area between the rear chassis spring bracket and the
axle.
4. Install Sauber frame mounting brackets maintaining 1/4" clearance to the torsion bar above the chassis frame.
Position frame mounting bracket with toggle links close to vertical. Maximum toggle link deflection is 12 degrees either side of vertical.
5. Clamp frame mounting bracket while drilling holes through frame bracket and frame. Fasten with (4) 1/2”-13 x
2” grade 8 bolts each side using hardened flat washers between casting and bolt head and between frame
and grade C lock nuts. Torque frame mounting bracket nuts to 115 ft-lbs.
6. Torque bearing cap fasteners to 115 ft-lbs.
7. Torque lock nuts at toggle links and anchor bracket to 100 ft-lbs.
48
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