Trail Master TM3745, TM40013 User Manual

400 W. Artesia Blvd. Fax: [phone]

Compton, CA 90220 Ph: [phone]

www.trailmastersuspension.com

JEEP CHEROKEE (XJ) 4.5” COIL SPRING KIT

‘84- ’01 KIT# TM3745-40013 w/ Add-A-Leaf

Or TM3745-40023 w/ Leaf Spring

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

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

CAUTION

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.

WARNING

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.

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.

WARNING

Always wear eye protection when operating power
tools.

WARNING

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

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

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.

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

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.

See factory serv ice manual for torque value s 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

from the center of the axle straight up (vertical) to
the fender lip. Record this measurement for all four
wheels.

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.

Engine Compartment

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

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