JEEP CHEROKEE (XJ) 3” SPRING KIT `84- `01 TM3730

JEEP CHEROKEE (XJ) 3” SPRING KIT `84- `01 TM3730

400 W. Artesia Blvd.

Compton, CA 90220

Fax: (310) 747-3912

Ph: (877) 695-7812

www.trailmastersuspension.com

JEEP CHEROKEE (XJ) 3” SPRING KIT

‘84- ’01 TM3730-40013 w/ Rear Add-A-Leaf &

TM3730-40023 w/ Rear Leaf Spring

WARNING WARNING

Installation of a Trail Master suspension lift kit will change the vehicle’s center of gravity and handling characteristics both on- and off-road. You must drive the vehicle safely! Extreme care must be taken to prevent vehicle rollover or loss of control, which could result in serious injury or death. Avoid sudden sharp turns or abrupt maneuvers and always make sure all vehicle occupants have their seat belts fastened.

WARNING

Many states and municipalities have laws restricting bumper heights and vehicle lifts. Consult state and local laws to determine if the changes you intend to make to the vehicle comply with the law.

WARNING

The installation of larger tires may reduce the effectiveness of the braking system.

Before you install this kit, read and understand all instructions, warnings, cautions, and notes in this instruction sheet and in the vehicle owner’s manual.

CAUTION

WARNING

Always wear eye protection when operating power tools.

WARNING

Proper installation of this kit requires knowledge of the factory recommended procedures for removal and installation of original equipment components.

We recommend that the factory shop manual and any special tools needed to service your vehicle be on hand during the installation. Installation of this kit without proper knowledge of the factory recommended procedures may affect the performance of these components and the safety of the vehicle. We strongly recommend that a certified mechanic familiar with the installation of similar components install this kit.

Before you install this kit, block the vehicle tires to prevent the vehicle from rolling.

WARNING

DO NOT combine suspension, body, or other lift devices. Use of vehicle with combined lifts may result in unsafe and/or unexpected handling characteristics.

NOTE

WARNING

Lift height may vary depending on vehicle configuration, engine size, additional accessories, the factory suspension package, and vehicle’s condition.

This kit should only be installed on a vehicle that is in good working condition. Before you install the kit, thoroughly inspect the vehicle for corrosion or deformation of the sheet metal. If the vehicle is suspected to have been in a collision or misused, do not install this kit. Off-road use of your vehicle with this kit installed may increase the stress applied to the factory components. Failure to observe this warning may result in serious personal injury and/or severe damage to your vehicle.

NOTE

Trail Master recommends using thread locking compound on the threads of all kit nuts and bolts unless specified otherwise in these instructions.

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Before Starting Installation

NOTE

Kit parts are prefaced by the word kit and appear in

bold print.

NOTE

Adhere to recommendations when replacement fasteners, retainers and keepers are called out in the factory service manual. When re-assembling the vehicle it is recommended by the vehicle manufacturer that certain fasteners are replaced in order to maintain proper retention characteristics. This system may not include all replacement hardware as recommended by the factory service manual. Additional replacement hardware should be obtained prior to installation of this system to meet the requirements of the factory service manual.

Wheel & Tire Requirements

The factory wheel and tire combination will fit once this kit is installed.

Torque Specifications:

See factory service manual for torque values when reusing OE fasteners.

1. Carefully read all warnings and instructions completely before beginning.

2. Verify all parts have been received in this kit by checking the parts list at the end of this document.

3. Only install this kit on the vehicle for which it

is specified. If anytime during the installation you

encounter something different from what is outlined in the instructions, call technical support at (877)

695-7812. Park vehicle on a clean, dry, flat, level

surface and block tires so vehicle cannot roll in either direction.

4. Park vehicle on a clean, dry, flat, level surface and block tires so vehicle cannot roll in either direction.

5. Measure ride height with the vehicle supporting its own weight on level ground. To settle the suspension, the vehicle should be driven forward at least 10 feet immediately prior to taking these measurements. Ride height is the measurement from the center of the axle straight up (vertical) to the fender lip. Record this measurement for all four wheels.

See factory service manual for torque values when re-using

OE fasteners.

Bolt Size Grade 5 (ft.-lbs.) Grade 8 (ft.-lbs.)

1/4”-20 10 10

1/4”-28 10 12.5

5/16”-18 17 22.5

5/16”-24 20 25

3/8”-16 30 40

3/8”-24 35 45

7/16”-14 50 65

7/16”-20 55 70

1/2”-13 75 100

1/2”-20 80 115

9/16”-12 105 135

9/16”-18 115 150

5/8”-11 150 195

5/8”-18 160 210

3/4”-16 175 225

Engine Compartment

1. Disconnect both battery cables. Disconnect negative cable first, then positive cable.

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Prepare to Install Front

Suspension

WARNING

Compressed coil springs can expand violently causing serious personal injury. Before removing the coil springs, lower the axle housing as far as possible to allow the coil springs to expand.

OE Coil

Spring

1. Loosen, but do not remove, lug nuts on each front wheel.

2. Jack the rear of the vehicle with the floor jack under the differential and place jack stands under the frame just behind the lower control arm frame mounts. Leave the jack stands high enough to let the floor jack down and still have the front tires suspended in the air. Keep the floor jack under the differential with slight pressure for support. Remove the front wheels.

WARNING

Use extreme caution when lifting vehicle from ground.

To prevent serious personal injury, ensure the lifting device is securely placed.

3. Disconnect the track bar from the axle and save the hardware for reuse.

4. Using the appropriate tool, disconnect the steering linkage from the pitman arm and save the hardware for reuse.

5. Unbolt the front sway bar end links from the axle. Save the hardware for reuse.

6. Unbolt and remove the shocks from the vehicle.

Save the hardware for reuse.

7. Unbolt and remove the coil spring retainers from the bottom of the spring.

8. Unbolt the brake line from the inner fender well and straighten the Z-Shaped bend to the lower hose.

9. Lower the jack carefully, remove the OE coil springs and the OE isolators. Label the springs as to which side they were removed, Left and

Right so that they are reinstalled in the side in which they were removed.

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Install Front Suspension

1. Carefully lower the front axle to ease in the new coil spring installation. Using the factory isolators install the coil springs (TM3730-60010) into the spring buckets

2. Raise the front axle into place. Make sure the coil spring seats properly on the lower spring perch. Reinstall the spring retainers (do not over tighten the retainer bolt it strips easily).

TM3730-

60010 Front

Coil Spring

3. Now would be a good time to inspect the front shocks for damage or fluid leakage. Replace if necessary.

4. Re-attach brake hose to inner fender well using the previously removed OE hardware..

5. Reinstall the steering linkage to the pitman arm using the previously removed hardware.

6. Re-drill front track bar axle bracket over toward drivers side ¾”, center-to- center.

7. Reinstall the front track bar to the newly drilled hole in the axle using the previously removed hardware.

8. Reinstall the sway bar end links to the axle mounts using the previously removed hardware.

9. Reinstall the wheels and lower the vehicle to the ground. Torque the lug nuts to factory specifications.

10. Torque all bolts to factory specifications. Retorque all bolts after 500 miles.

Prepare to Install Rear

Suspension

In order to properly install the add-a-leaf spring, it will be necessary to contain the elasticity in the leaf spring with “C” clamps when the center bolts are removed. Some springs have a factory helper spring consisting of one or more flat leaves installed at the bottom of the leaf pack. DO NOT install the add-a-leaf spring in or below the helper spring.

1. Block the front tires and raise the rear of the vehicle. Support the frame with jack stands forward of the rear springs.

2. Remove the rear wheels.

3. Unbolt and remove the shocks from both sides of the vehicle. It may be necessary that you slightly raise the axle to unload the shocks for removal.

4. Unbolt the rear sway bar end links from the axle mount. Save the hardware for reuse.

5. Support the rear axle with a floor jack and remove the U-bolts on the driver side. Loosen the Ubolts on the passenger side.

6. Hold the spring assembly securely together with

“C” clamp. Spread apart spring leaf alignment clamps. Remove the spring center bolts. A hammer and drift punch may be used to drive them out if necessary.

7. Carefully remove “C” clamp. Lower axle, disassemble leaf spring.

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Add-A-Leaf kit: TM3730-40013 Installation

OE Rear Leaf

Spring

TM3730-60020

Add-a-Leaf

Install Rear Suspension

Add-a-leaf will be placed in the spring assembly progressively according to length. For example, if the existing leaves are 32” long and

25” long and the add-a-leaf is 28” long, place the add-a-leaf between the existing leaves.

1. Insert the add-a-leaf (TM3730-60020). Reclamp and bolt the leaf pack back together using the supplied center bolts from pack (90-3856) with the heads of the bolts facing down and the nut on the top. When you are finished you may need to trim the excess thread from the center bolts, so that it does not hit the U-bolt bracket on top of the leaf springs. Bend the alignment clamps back around the leave.

2. Make sure the pins fit into the holes on the spring perch. Use your floor jack to raise the axle to the spring making sure the head on the factory leaf fit into the holes on the spring perch.

3. Secure the assembly with the OE U-bolts and hardware. Do not tighten the U-bolts at this time. Make sure the spring sits flush on the axle perch. If there is a gap grinding down the heads of the bolts may be necessary.

4. Repeat the installation on the other side of the vehicle.

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5. When the installation of the remaining side is complete, torque the U-bolts to 95 ft. lbs. If the threads are too long you can trim the threads.

6. Install the new rear shocks (TM73225010) to the

OE mounting locations.

7. Reinstall the sway bar end links to the rear axle using the previously removed OE hardware.

8. Reinstall the wheels and tires and lower the vehicle to the ground. Torque according to manufacturers specification. If you are using aftermarket wheels follow the manufacturers recommended specifications.

9. Recheck the wheel lug torque on all four wheels at this time.

10. Recheck all hardware for proper installation and torque at this time.

11. On completion of the installation, have the headlights re-aligned.

12. Test drive and note location of steering wheel.

13. Adjust drag link to center steering wheel.

14. Align vehicle as soon as practical to minimum factory caster and maximum factory toe-in specifications.

15. After 100 miles recheck for proper torque on all newly installed hardware.

16. Recheck all hardware for tightness after off road use.

Rear Leaf Spring kit: TM3730-40023 Installation

TM3730-60030

Rear Leaf Spring

Prepare to Install Rear

Suspension

1. Block the front tires and raise the rear of the vehicle. Support the frame with jack stands forward of the rear springs.

2. Remove the wheels and tires.

3. Remove the shocks on both sides of the vehicle. It may be necessary that you slightly raise the axle to unload the shocks for removal.

4. If your vehicle is equipped with factory sway bar, unbolt it from the rear axle

5. Support the rear axle with a floor jack and remove the OE U-bolts on the driver side. Slightly loosen the OE U-bolts on the passenger side.

6. Lower the rear axle. Be sure not to over extend the rear brake line and rear axle vent line.

7. While supporting the rear leaf spring, remove the factory spring mounting bolts and remove the leaf spring from the driver side only at this time.

Install Rear Suspension

1. Install the new leaf spring (TM3730-60030) to the hangers using the factory hardware. Do not torque at this time.

2. Make sure the pins fit into the holes on the spring perch. Use your floor jack to raise the axle to the spring making sure the head on the factory leaf fit into the holes on the spring perch.

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3. Secure the assembly with the supplied U-bolts

(TM3730-50050) and hardware. Do not tighten

the U-bolts at this time. Make sure the spring sits flush on the axle perch. If there is a gap grinding down the heads of the bolts may be necessary.

4. Repeat the installation on the other side of the vehicle.

5. When the installation of the remaining side is complete, torque the U-bolts to 95 ft. lbs.

6. Install the new rear shocks (TM73225010) to the

OE mounting locations.

7. Reinstall the sway bar end links to the rear axle using the previously removed OE hardware.

8. Reinstall the wheels and tires and lower the vehicle to the ground. Torque according to manufacturers specification. If you are using aftermarket wheels follow the manufacturers recommended specifications.

9. Torque the spring mounts at this time. The front bolts are torqued to 250 ft. lbs. and the rear bolts are torqued to 185 ft. lbs. Torque the Ubolts to 120 ft. lbs. If the U-bolt threads are too long you can trim the threads.

10. Recheck the wheel lug torque on all four wheels at this time.

11. Recheck all hardware for proper installation and torque at this time.

12. On completion of the installation, have the headlights re-aligned.

13. Test drive and note location of steering wheel.

14. Adjust drag link to center steering wheel.

15. Align vehicle as soon as practical to minimum factory caster and maximum factory toe-in specifications.

16. After 100 miles recheck for proper torque on all newly installed hardware.

17. Recheck all hardware for tightness after off road use.

WARNING

Re-torque all fasteners after 500 miles and after off road use. All suspension lift components should be visually inspected and fasteners retorqued during routine vehicle servicing.

After Completing Installation

Engine Compartment

1. Connect both battery cables. Connect positive

cable first, then negative cable.

Miscellaneous

1. Adjust headlights.

2. Check all fasteners to ensure they are tight.

3. Ensure all wires, hoses, cables, etc. are prop-

erly connected and there is ample slack.

4. Align vehicle to OE specifications. Retain align-

ment results.

Dynamic Vehicle Check

1. Check steering and suspension in all positions

to ensure that there is no bind and adequate clearance between all moving, fixed, and heated members. Check operation of clutch, brake system, and parking brake. Check operation of transmission and transfer case. Ensure there is full engagement in all gears and 4WD ranges. Check battery connections and electrical component operations. Test-drive vehicle.

CAUTION

Trail Master does not recommend any particular wheel and tire combinations for use with its suspension lifts and cannot assume responsibility for the customer’s choice of wheels and tires. Refer to your owner's manual for recommended tire sizes and warnings related to the use of oversized tires. Larger wheel and tire combinations increase stress and wear on steering and suspension components, which leads to increased maintenance and higher risk for component failure. Larger wheel and tire combinations also alter speedometer calibration, braking effectiveness, center of gravity, and handling characteristics. Consult an experienced local off road shop to find what wheel and tire combinations work best with your vehicle.

NOTE

All warranty information, instruction sheets, and other documents regarding the installation of this product must be retained by the vehicle owner.

Information contained in the instructions and on the warranty card will be required for any warranty claims. The vehicle owner needs to understand the modifications made to the vehicle and how they affect vehicle handling and performance. Failure to provide the customer with this information can result in damage to the vehicle and severe personal injury.

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Kit Parts List:

TM3730-40013 Kit:

1 3” Coil Spring (TM3730-60010)

1 Add-A-Leaf (TM3730-60020)

1 90-3856 Hardware bag, (Add-A-Leaf)

2 Bolt (5/16” x 5” Gr. 8)

2 Bolt (3/8” x 5” Gr. 8)

2 Hex Nut, (5/16”)

2 Hex Nut, (3/8”)

2 Absorber (shock, front, TM73245011)

2 Absorber (shock, rear, TM73225010)

TM3730-40023 Kit:

1 3” Coil Spring (TM3730-60010)

2 Rear Leaf Spring (TM3730-60030)

1 Rear U-Bolts (TM3730-50050)

2 Absorber (shock, front, TM73245011)

2 Absorber (shock, rear, TM73225010)

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Notice to Owner Operator, Dealer and Installer:

Vehicles that have been enhanced for off-road performance often have unique handling characteristics due to the higher center of gravity and larger tires. This vehicle may handle, react and stop differently than many passenger cars or unmodified vehicles, both on and off–road. You must drive your vehicle safely!

Extreme care should always be taken to prevent vehicle rollover or loss of control, which can result in serious injury or even death. Always avoid sudden sharp turns or abrupt maneuvers and allow more time and distance for braking! Trail Master Suspension reminds you to fasten your seat belts at all times and reduce speed! We will gladly answer any questions concerning the design, function, maintenance and correct use of our products.

Please make sure your Dealer/Installer explains and delivers all warning notices, warranty forms and instruction sheets included with Trail Master Suspension product.

Application listings in this catalog have been carefully fit checked for each model and year denoted. However, Trail Master Suspension reserves the right to update as necessary, without notice, and will not be held responsible for misprints, changes or variations made by vehicle manufacturers. Please call when in question regarding new model year, vehicles not listed by specific body or chassis styles or vehicles not originally distributed in the USA.

Please note that certain mechanical aspects of any suspension lift product may accelerate ordi-

nary wear of original equipment components. Further, installation of certain Trail Master Suspension products may void the vehicle’s factory warranty as it pertains to certain covered parts; it is the consumer’s responsibility to check with their local dealer for warranty coverage before installation of the lift.

Warranty and Return policy:

Trail Master Suspension warranties its full line of products to be free from defects in workmanship and materials. Trail Master Suspension’s obligation under this warranty is limited to repair or replacement, at

Trail Master Suspension’s option, of the defective product. Any and all costs of removal, installation, freight or incidental or consequential damages are expressly excluded from this warranty. Trail Master

Suspension is not responsible for damages and / or warranty of other vehicle parts related or non-related to the installation of Trail Master Suspension product. A consumer who makes the decision to modify his vehicle with aftermarket components of any kind will assume all risk and responsibility for potential damages incurred as a result of their chosen modifications. Warranty coverage does not include consumer opinions regarding ride comfort, fitment and design. Warranty claims can be made directly with Trail Mas-

ter Suspension or at any factory authorized Trail Master Suspension dealer.

IMPORTANT! To validate the warranty on this purchase please be sure to mail in the warranty card.

Claims not covered under warranty-

• Parts subject to normal wear; this includes bushings, bump stops, ball joints, tie rod ends and heim joints

• Discontinued products at Trail Master Suspension’s discretion

• Bent or dented product

• Finish after 90 days

• Leaf or coil springs used without proper bump stops

• Products with evident damage caused by abrasion or contact with other items

• Damage caused as a result of not following recommendations or requirements called out in the installation manuals

• Products used in applications other than listed in Trail Master Suspension’s catalog

• Components or accessories used in conjunction with other manufacturer’s systems

• Warranty claims without “Proof of Purchase”

Trail Master Suspension accepts no responsibility for any altered product, improper installation, lack of or improper maintenance, or improper use of our products.

E-Mail: [email protected]

Website: www.trailmastersuspension.com

Ph: (877) 695-7812

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