Trail Master Suspension TM3745-40023 w/ Leaf Spring JEEP CHEROKEE (XJ) 4.5 COIL SPRING KIT - Manual (Page 6)

6
Prepare to Install Rear
Suspension
In order to properly install the add-a-leaf
spring, it will be necessary to contain the elas-
ticity 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 ve-
hicle. 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 re-
move the U-bolts on the driver side. Loosen the 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.
8. Hold the leaf spring assembly securely together
with “C” clamp. Spread apart spring leaf alignment
clamps. Remove the spring center bolts. A ham-
mer and drift punch may be used to drive them out
if necessary.
9. Carefully remove “C” clamp and disassemble
the leaf spring.
Install Rear Suspension
Add-a-leaf will be placed in the spring as-
sembly 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). Re-
clamp 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. Assemble the leaf spring rear shackles using
the supplied rear shackles (82-TM20044),
shackle bushings (TM40560), shackle sleeve
(TM30032) and Zerk fitting (90-4303).
OE Rear Leaf
Spring
TM3730-60020
Add-a-Leaf
Add-A-Leaf kit: TM3745-40013 Installation