Part#: 012414, 012604
4”& 6” 4-Link Suspension System
Dodge Ram 3500 Pickup 4WD | 2013-2014
Dodge Ram 2500 Pickup 4WD | 2014
Rev. 081114
491 W. Garfield Ave., Coldwater, MI 49036 . Phone: 517-279-2135
Web/live chat: . E-mail: [email protected]
Read And Understand All Instructions
And Warnings Prior To Installation Of
System And Operation Of Vehicle.
Your truck is about to be fitted with the best suspension system on the market today. That means you will be driving the baddest looking truck in
the neighborhood, and you’ll have the warranty to ensure that it stays that way for years to come. Thank you for choosing BDS Suspension!
BDS Suspension Co. recommends this system be installed by a
professional technician. In addition to these instructions, professional
knowledge of disassembly/ reassembly procedures and post installation checks must be known.
Certain BDS Suspension products are intended to improve off-road
performance. Modifying your vehicle for off-road use may result in
the vehicle handling differently than a factory equipped vehicle.
Extreme care must be used to prevent loss of control or vehicle
rollover. Failure to drive your modified vehicle safely may result in
serious injury or death. BDS Suspension Co. does not recommend the
combined use of suspension lifts, body lifts, or other lifting devices.
You should never operate your modified vehicle under the influence
of alcohol or drugs. Always drive your modified vehicle at reduced
speeds to ensure your ability to control your vehicle under all driving
conditions. Always wear your seat belt.
37x13.50 w/ 5.625” Backspacing on 9” wide wheel
37x12.50 w/ 5” Backspacing on 9” wide wheel
37x13.50 w/ 5.625” Backspacing on 9” wide wheel
37x12.50 w/ 4.5” Backspacing on 9” wide wheel
Special literature required: OE Service Manual for model/year of vehicle. Refer to manual for proper disassembly/reassembly procedures
of OE and related components.
Adhere to recommendations when replacement fasteners, retainers
and keepers are called out in the OE manual.
Larger rim and tire combinations may increase leverage on suspension, steering, and related components. When selecting combinations larger than OE, consider the additional stress you could be
inducing on the OE and related components.
Post suspension system vehicles may experience drive line vibrations.
Angles may require tuning, slider on shaft may require replacement,
shafts may need to be lengthened or trued, and U-joints may need to
be replaced.
Check all fasteners for proper torque. Check to ensure for adequate
clearance between all rotating, mobile, fixed, and heated members.
Verify clearance between exhaust and brake lines, fuel lines, fuel tank,
floor boards and wiring harness. Check steering gear for clearance.
Test and inspect brake system.
Perform steering sweep to ensure front brake hoses have adequate
slack and do not contact any rotating, mobile or heated members.
Inspect rear brake hoses at full extension for adequate slack. Failure
to perform hose check/ replacement may result in component failure.
Longer replacement hoses, if needed can be purchased from a local
parts supplier.
Secure and properly block vehicle prior to installation of BDS Suspension components. Always wear safety glasses when using power tools.
Perform head light check and adjustment.
If installation is to be performed without a hoist, BDS Suspension Co.
recommends rear alterations first.
Re-torque all fasteners after 500 miles. Always inspect fasteners and
components during routine servicing.
Due to payload options and initial ride height variances, the amount
of lift is a base figure. Final ride height dimensions may vary in accordance to original vehicle attitude. Always measure the attitude prior
to beginning installation.
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012403 - 4 Link Arms
012414 - Cont’d
Part #
Part #
Dodge 4 link conversion - lower control arm
Sway Bar Drop (6” only)
Straight Grease Zerk
Sway Bar Drop (6” only)
Bushing (Large - Lower Control Arm)
Bolt Pack
1/2"-13 x 1-3/4" bolt - grade 8 - yellow zinc
1/2"-13 Prevailing torque nut - yellow zinc
012414 - 4 Link Brackets
1/2"-13 Nut (non locking) - yellow zinc
Part #
1/2"-13 USS Washer - yellow zinc
BDS 4-link bracket - DRV
18mm-2.50 x 90mm bolt - class 10.9 clear zinc
BDS 4-link bracket - PASS
18mm-2.50 Prevailing torque nut - clear zinc
1/16” Shim
1/8” Shim
Upper Control Arm Assembly
3/4" SAE Washers - Clear zinc
Bolt Pack - 4 Link Brackets
Dodge weld in bung
5/8"-11 x 6" bolt - grade 8 - yellow zinc
Dodge long machined spacer sleeve
5/8" USS Washer - yellow zinc
5/8"-11 Prevailing torque nut - yellow zinc
Rivet nut installation bolt pack
1/2" Rivet nuts
9/16"-12 x 4" bolt - grade 8 - yellow zinc
Spacer Sleeve
9/16" SAE Washer - yellow zinc
1.250 x 0.312 x 0.875
9/16"-12 Prevailing torque nut - yellow zinc
Pitman Arm
3/4"-10 x 5-1/2" bolt - grade 8 - yellow zinc
4/6" BDS trackbar bracket
3/4"-10 x 5" bolt - grade 8 - yellow zinc
Trackbar Cam 2013 Dodge 3500 (4 positions)
3/4" SAE Thru hardened washer - yellow zinc
Fish Wire
3/4"-10 Prevailing torque nut - yellow zinc
1/2" Bolt Tab
1/2"-13 x 1-1/4" bolt - grade 8 - yellow zinc
0.750 x 0.120 x 0.375 dom sleeve
Dodge 4" brakeline relocation bracket
5/16"-18 x 3/4" Type 23 self threading bolt
Front Driveshaft Spacer (4” only)
Bump Stops
1/2" USS Washer - yellow zinc
Bolt Pack Driveshaft Spacer (4” only)
7/16-14 x 2-1/4” 12 point bolt
Bolt Pack - Sway Bard drop (6” only)
3/8”-16x1 1/4” bolt
3/8”-16 prevailing torque nut
3/8” USS flat washer
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Pre installation Notes:
6.4L Gas models will require exhaust modification to clear the front
driveshaft and passenger’s 4-link bracket. 5.7L Gas models may
require modification - but not in all cases. The vehicle can be driven
without the front driveshaft to an exhaust shop for modification and
reinstalled after modification.
#1: Pitman arm puller
#2: 11/16” drill (step drill highly recommended)
#3: Welder
Measure first
Measure from the center of the wheel up to the bottom edge of the wheel opening:
LF__________ RF__________ LR__________ RR__________
4-LINK Installation Instructions
Park vehicle on clean flat and level surface. Block the rear wheels for safety.
Disconnect the battery / batteries, welding will be required. Do not weld on the vehicle with the batteries connected.
Remove the front trackbar bolt from the frame rail. Retain all hardware. (Fig. 1)
Figure 1
Raise the front of the vehicle and support the frame rails with jackstands. Do not support on the radius arms, they will be removed during
the installation.
When the front driveshaft is disconnected: Before reattaching the front driveshaft, now is a great time to grease the nearly impossible to access
grease fitting on the front dual cardan joint. A needle adaptor on a grease gun is required. This fitting is required to be serviced at every oil change
interval. Ensure that this maintenance is not skipped!
6” kits will require the installation of a transmission indexing ring and replacement crossmember. This installation is typically not required
on 4” kits, however, in rare circumstances it may be necessary. 6” kits will need to reference the 6 bolt (122613) or 8 bolt (122813) instruction sheet at this time.
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4” kits only: Install the provided front driveshaft spacer (02296) between the transfer case output flange and the front driveshaft. Fasten
with the provided 7/16” x 2-1/4” 12-point bolts (Bolt Pack 932). Apply Loctite to the threads and torque hardware to 75 ft-lbs. The front
driveshaft spacer is supplied in box kit #012414 for 4” kits and with the t-case indexing kit (#122613 or #122813) for 6” kits.
Suspension Disassembly
Support the front axle with a hydraulic jack.
Remove the factory wheels, remove the retaining clips that hold the rotor on and may interfere with aftermarket wheels.
Remove the transmission skid plate (if equipped), retain hardware.
10. Break the jam nuts loose on the adjusting collar of the drag link. (Fig. 2)
Figure 2
11. Disconnect the tie rod from the pitman arm, do not damage the tie rod boot. Mark the orientation of the pitman arm and remove the pitman arm from the sector shaft. (Fig. 3)
Figure 3
12. Disconnect the sway bar links from the sway bar. Retain all hardware. (Fig. 4)
012414 | 5
Figure 4
13. Disconnect the brake line bracket from the top of the radius arm mount on the axle, retain bolt, discard bracket. (Fig. 5)
Figure 5
14. Disconnect the front driveshaft from the axle, retain the 4 bolts.
15. Disconnect the factory shock from the lower shock mount. (Fig. 6) Lower the front axle and remove the factory coil springs.
Figure 6
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16. Raise the front axle and reattach factory shocks with factory bolt. It is not necessary to put the nut tab back on. The shocks will be there to
keep the axle secure. Keep a jack under the axle for extra support.
4-link Bracket Installation
17. Mark the cam at the axle. Remove the passenger’s side radius arm. Retain all hardware. It will be necessary to remove the shock bolt and
move the shock out of the way to get the upper hardware out. Reinsert the lower shock bolt when the arm is removed. This is a safety
measure to keep the axle from moving an excessive amount.
18. On the passenger’s side only. Measure and mark as shown (Fig. 7). This small amount of material will need to be removed for clearance to
the new radius arm drop bracket. The inside edge of the cut will be flush with the transmission crossmember. The outside edge will be
flush with the radius arm mounting plate. Measure up 1/4” and remove this material for clearance.
Figure 7
1/4" UP
19. Remove the nuts from the transmission crossmember, if not already done in the transfer case index installation. Place the 4-link bracket up
to the frame rail. Insert ¾” bolt to locate the bracket. Mark the center of the slot on the bottom of the frame rail, mark the center of the top,
rear hole on the side of the frame rail. (Fig. 8)
Figure 8
20. Remove the bracket and drill the 2 centers to 11/16”. Prep the area on the side of the frame rail for welding. Place the weld in bung into the
hole and weld the bung into place. (Fig. 9)
012414 | 7
Figure 9
21. I nsert the rivet nut into the bottom of the frame rail. Use the hardware (#799) to set the rivet nut into place as shown (Fig. 10). See the end
of the instruction sheet for detailed rivet nut installation instructions.
Figure 10
22. Place the machined sleeve into the existing frame rail hole. Reinstall the bracket with hardware (#788) and sleeve as shown. Due to variations in the factory brackets, shims are included to go between the bracket and transmission crossmember to take up the slack. Drop the
shims in from the top. There are (2) 1/8” shims and (2) 1/16” shims included. Shims may need to be stacked. (Fig. 11a-g)
Figure 11A
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FigURE 11B
FigURE 11C
1/2” X 1-1/4
Spacer sleeve
5/8” X6
1/2” X 1-1/4
3/4 X 5-1/2
FigURE 11D
FigURE 11E
FigURE 11F
FigURE 11G
shim plates
install from top
23. Grease and install bushing and sleeves into the lower control arm. Thread the grease fitting into the arm.
012414 | 9
24. With a jack still under the axle, disconnect the radius arm from the driver’s side frame bracket. Install the new upper and lower control arm
on the passenger’s side. The upper arm will get 9/16” x 4” hardware, the lower will get 3/4” x 5” hardware. The factory hardware is used at
the axle. It is recommended to knock the nut tabs from the factory nuts to allow for quick torque of the hardware with the shocks in place
later in the installation. Place a large socket over the nut and press off the tab in a vice. Note: The lower arm is curved inward for tire clearance. Both the upper and lower arms will have the part #’s stamped on them and the part #’s will face in towards the center of the vehicle.
(Fig 12)
25. Tighten hardware as follows: 1/2” 65ft-lbs, 5/8” through the frame bolt 110 ft-lbs, 3/4” through the factory radius arm mount: 180 ft-lbs. Do
NOT tighten the control arm hardware at this time, final torque will be done with the weight of the vehicle on the ground.
26. Repeat bracket and arm installation procedure on the driver’s side. The driver’s side will require the transmission crossmember bolt that is
closest to the frame rail to be ran from front to rear for upper arm clearance.
The trimming for clearance on the frame bracket is not required on the driver’s side.
27. Rotate the cam to the position marked at the beginning of the installation. Snug all hardware, do not tighten at this time.
Bump Stop Installation:
28. Remove the factory bump stops, it is easiest to hit them from side with a hammer to pop them out. (Fig. 13a)
Figure 13a
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29. Grease new replacement bump stops and raise axle to press the bump stops into position. These will be a tight fit. It is easiest to lift the
axle with a jack to compress the bump stops into position. (Fig. 13b)
Figure 13b
Track Bar Bracket Installation
30. Install the trackbar bracket with factory bolt through the original trackbar hole.
31. Clearance the factory hole on the frame crossmember where the trackbar bracket meets to 9/16”.
32. The upper slot in the trackbar bracket will align with the hole in the factory trackbar bracket. These holes have variations in their position,
and minor grinding of the factory hole may be required. Clearance the hole so ½” hardware will fit through it. (Fig. 14)
Figure 14
Trackbar spacer
012414 | 11
33. Fish the bolt tab through the frame rail with the included bolt wire and attach to the trackbar bracket with ½” USS washer and regular nut.
Apply loctite to the bolt threads. Attach the upper hole with ½” x 1-3/4 (#789) bolt with spacer washer as shown. (Fig. 15a, 15b)
FigURE 15B
FigURE 15A
34. Tighten ½” trackbar hardware to 65 ft-lbs. Tighten 18mm factory bolt to 250 ft-lbs.
35. Support front axle and remove the factory shocks. Retain the lower hardware, discard shocks and upper hardware.
36. 4” Lifts Only: Lower the axle and install the new coils with factory isolator. The coils are side specific. They are marked “DRV” and “PASS.”
37. 6” Lifts Only: Lower the axle and install the new coils with factory isolator. The Driver’s side coil will install with the isolator tab in the factory hole. The Passenger’s side isolator will need to be rotated just over 45 degrees. Cut and place the template up to the factory mount,
mark hole center and drill to 1/2”. The upper isolator on the passenger’s side is shown in the new hole. (Fig 16a, 16b, 16c, 16d) ONLY on the
passenger’s side.
Figure 16A
Figure 16B
drill 1/2”
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Figure 16D
Figure 16C
38. Grease and install bushings and sleeves into the shocks. Install new shocks with cup washers, bushings, and ½” nut at the top mount.
Tighten the nut until the bushings begin to swell.
39. Attach the lower shock with factory hardware. Tighten hardware to 65 ft-lbs.
Steering Modification
40. Disassemble the drag link. Trim the tab from the tie rod end flush with the end of the threads (Fig 16a, 16b). Trim the end of the tab on the
drag link to 1-1/4” long. (Fig. 17A-C).
FigURE 17a
FigURE 17B
trim tab from tie
rod end only
trim drag
link tab 1-1/4”
012414 | 13
41. Reassemble the drag link, adjust so that there is approximately ¾”~7/8” of thread exposed past the jam nuts and that the tie rod end faces
up. (Fig. 18)
42. Install new pitman arm, use alignment mark made earlier. Loctite factory nut and install with lock washer tighten nut to 225 ft-lbs.
43. 4” Kits Only: Reattach the sway bar links to the sway bar, tighten to 55 ft-lbs.
44. 6” Kits Only: Install sway bar drop brackets with factory hardware at the frame. The flat side of the bracket will face ‘out’ and the brackets
will offset the sway bar slightly forward. Attach sway bar to drop brackets with 3/8” hardware, tighten all hardware to 35 ft-lbs. (Bolt Pack
#422) (Fig 19a, 19b). Reattach the sway bar links to the sway bar, torque to 55 ft-lbs.
Figure 19A
Figure 19B
45. Attach drag link to pitman arm with factory nut. Tighten to 65 ft-lbs. (Fig. 20)
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46. Attach brake line relocation brackets to the top side of the axle with the factory bolt and 5/16” self threading bolt into the original locating
tab hole. The brake lines will need to have the fittings loosened so they can be rotated and pointed up. Attach the brake line to the bracket
with retaining clip. The brackets will need to be offset in towards the ‘inside’ of the vehicle to give more clearance to the larger body of the
shock. It will be necessary to slightly reform the hard line. (Fig. 21)
47. Place the transmission skid plate (if equipped) up to the factory mounting location. Mark the area that interferes with the 4-link brackets
and remove this section from the skid plate, approximately 2” inward and 1” rearward. Reinstall with factory hardware, tighten to 35 ft-lbs.
The skid plate will not work with the replacement transmission crossmember.
48. Reattach the front driveshaft to the front axle with factory hardware and loc-tite. Tighten to 75 ft-lbs.
49. Install wheels and tighten lug nuts to factory specifications. Lower the vehicle to the ground.
50. Tighten 4-link hardware as follows: 18mm stock hardware at axle to 180 ft-lbs. 3/4” Lower hardware at 4-link bracket: 180 ft-lbs. 9/16” Upper arm hardware: 95 ft-lbs.
51. Turn the steering wheel to get the trackbar to align with the bracket. Install new 18mm bolt with cams and tighten to 250 ft-lbs (#789). Adjust cam so that the bolt is closest to the passenger’s side for 6” kit (Fig 22b), closest to driver’s side for 4” kit (Fig 21a). It is possible to adjust
the cam towards the center of the slot more to compensate for axle position by rotating the cam 90 degrees. (Fig 22A, 22B)
FigURE 22A - 4” KIT
FigURE 22B - 6” KIT
52. If any brake fluid was lost during the installation (rotating the brake fitting), the brakes must be bled, do so at this time.
Rear Installation for 3500 trucks with leaf springs
*2500 trucks see separate instruction sheet*
53. Raise the rear of the vehicle, block the front wheels for safety. Support the frame rails with jackstands.
54. Disconnect e-brake cable and reroute the line to give adequate slack in the cable at full droop, reattach once routed for extra slack. (Fig.
23a, 23b) Reattach once rerouted.
012414 | 15
FigURE 23A
FigURE 23B
55. Remove the factory shocks, retain all mounting hardware.
56. Disconnect the brake line brackets from the top of the axle to allow maximum droop without overextending the brake lines.
57. Support the rear axle with a hydraulic jack. Remove the u-bolts and plates from one side of the vehicle only. Loosen the u-bolts, but do not
remove the opposite side.
58. Lower the axle, remove the factory plastic center pin and replace it with the press-in metal pin. The pin is designed to be a press fit. Minor
clearancing / chamfering of the factory leaf plate may be require to get the pin to slide in. (Fig 24)
59. Install new lift block with new u-bolts and install the nuts, but do not tighten at this time.
60. Repeat block and u-bolt installation on opposite side of the vehicle.
61. Tighten u-bolts snugly at this time, do not torque until the vehicle is on the ground.
62. Grease bushings and sleeves, install them into both ends of the shocks. Install new shocks with factory hardware. Tighten to 65 ft-lbs. If
installing optional Fox shocks, the body will be located at the frame mount.
63. 4” kits: Reattach the factory rear brakeline bracket to the top of the axle with factory hardware. Tighten to 20 ft-lbs.
64. 6” kits: Install ‘L’ shaped bracket to the top of the axle with factory hardware. Carefully reform the factory hard lines for adequate routing.
Attach brake line bracket to ‘L’ bracket with 1/4” x 3/4” hardware (#768) (Fig 25a, 25b)
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FigURE 25A
FigURE 25B
65. Reinstall wheels, torque to specification. Lower vehicle to the ground and torque u-bolts to 120 ft-lbs.
Adjust the steering wheel to center with the collar on the drag link. Securely lock off the jam nuts once the wheel is straight. Do not drive
the vehicle with the steering wheel off-center or adverse traction control problems may arise.
Recheck all hardware, check again at 500 miles, and again at regularly scheduled maintenance intervals. Check brake lines and ABS wires
for proper clearance through steering sweep, use zip ties on the ABS wires if necessary. An alignment must now be performed.
These trucks can have a vibration from the factory under load and at extremely low RPM’s (less than 1200 RPM’s), the vibration can become
more apparent after lifting the rear of the truck. There is an optional rear driveshaft spacer kit available (Part# 122007). This will increase
rear driveshaft spline engagement and has been found to reduce vibration in rare instances where a vibration is present.
Carrier bearing drop is available separately, and is not included in the kit. Order separately if required.
Rivet Nut Installation Instructions
Rivet Nut Sizing
Verify the correct size rivet nut for the application based on the thickness of material where the rivet nut is to be installed using the following chart.
Length (in)
Material Thickness
Size (in)
Hole Preparation
Drill hole to appropriate size for rivet nut installation. 1/2” Rivnuts require an 11/16” hole and 3/8” Rivnuts require a 17/32” drill. It is critical
that this hole is drilled to the correct size. Remove any burrs that could keep the rivet nut from seating flat against either side of the hole
If the correct drill size is not available, it is possible to drill the hole to an available smaller size and slowly grind it out to until the rivet
nut fits tight.
012414 | 17
Rivet Nut Installation Tool Assembly
For a 3/8” rivet nut, place the provided 3/8” SAE flat washer on the 3/8” x 1-1/2” bolt, followed by 7/16” hex nut and then a 3/8” serrated
washer. (Fig. 1) Thread this tool assembly into the rivet nut.
For a 1/2” rivet nut, place the provided 1/2” SAE washer on a 1/2” x 2” bolt followed by a 9/16” high nut and 1/2” serrated edge lock washer.
Thread this tool assembly into the rivet nut as shown. (Fig. 1)
FIGURE 1- 1/2” Rivet nut Shown
Rivet Nut Installation
Place the installation tool with the rivet nut threaded on the end into the appropriately sized hole.
For a 3/8” rivet nut, hold the nut closest to the rivet nut still with an 5/8” wrench and tighten the 3/8” bolt with a 9/16 wrench to set the rivet
nut. Be sure to hold the rivet nut flush to the surface and square to the hole as it is tightened. (Fig. 2)
If available, an impact gun is recommended for tightening the bolt to ensure the rivet nut remains square to the hole and to ease holding the nut from spinning.
For a 1/2” rivet nut, hold the nut closest to the rivet nut still with an 7/8” wrench and tighten the 1/2” bolt with a 3/4” wrench to set the rivet
nut. Be sure to hold the rivet nut flush to the surface and square to the hole as it is tightened. (Fig. 2)
FIGURE 2 - 1/2” Rivet Nut Shown
Torque Specifications
3/8” rivet nuts will approach 40 ft. lbs for maximum grip strength. Do not exceed 45 ft-lbs when setting the rivet nut.
1/2” rivet nuts will approach 90 ft lbs for maximum grip strength. Do not exceed 100 ft-lbs when setting the rivet nut.
Note: If using the recommended impact gun, use caution to not exceed the recommended torque specifications.
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Rivet Nut Tool Removal
10. Once the center bolt is tightened, remain holding the nut from spinning with the wrench and loosen the center bolt to remove the installation tool.
It is very important to hold the nut as the bolt is loosened because the grip of the star washer will try to spin the rivet nut and ruin
the installation.
11. Verify proper installation by checking for consistent rivet nut deformation to see the threads are square and centered to the rivet nut.
(Fig. 3)
Thank you for choosing BDS Suspension.
For questions, technical support and warranty issues relating to this BDS Suspension product, please contact your distributor/installer
before contacting BDS Suspension directly.
012414 | 19
DRILL 1/2"
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