Trail Master Suspension TM102N GM 1500 4WD/2WD SUSPENSION 4 LIFT KIT - Manual (Page 12)

12
TM102N
Revised
2.4.14
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 rear wheels.
3. Unclip the ABS line from the frame rails.
Remove the plastic clip and discard.
4. Carefully remove the OE shock absorbers. It
may be necessary to raise the differential
housing slightly to facilitate their removal.
5. Unbolt the rear brake line bracket from the
tab on the rear end.
6. Install the rear brake line relocation bracket
(90-3341) to the rear end using the previously
removed OE bolt. Secure the rear brake line
to the new relocation bracket (90-3341) using
the supplied 5/16” X 1” bolt and hardware.
7. Work on one side of the vehicle at a time.
8. Support the rear axle with a floor jack and
remove the U-bolts on the driver side.
Loosen the U-bolts on the passenger side and
carefully lower the rear axle.
NOTE: Be sure not to over extend the
rear brake line and rear axle vent line.
Install Rear Suspension
9. Install the lift block (95-300C) making sure
the pin are fitted into the hole on the spring
perch. Use your floor jack to raise the axle to
the spring making sure the pin on the leaf
spring fit into the holes on the new lift block.
10. Install the new U- bolts (13-90086) over the
leaf spring assembly and using the new wash-
ers and nuts (20-65302) supplied along with
the existing spring plates.
11. Use the zip ties from pack (90-6319) and se-
cure the ABS line to the OE bump stop
bracket.
12. Repeat the installation on the other side of the
vehicle.
13. When the installation of the remaining side is
complete, torque the U-bolts to 120 ft./lbs.
NOTE: You may trim the excess threads
off of the newly installed U-bolts.
14. Install the new Trail Master shocks
(TM75800W) using the previously removed
OE bolts. Be sure to use thread locker and
torque the hardware to
85 ft./lbs.
15. Check for adequate clearance on all reposi-
tioned brake lines and emergency brake ca-
bles. Make sure you check with the suspen-
sion fully extended, and compressed.
95-300C
Lift Block
13-90086
U-Bolt
Hi Nut Pack
20-65302
OE
Bolt
90-3341
Brake Line
Relocation
bracket
5/16” X
1” Bolt
OE Brake
Line Bracket
Rear End