Install rear suspension – Trail Master Suspension TM407N FORD F-150 4WD 6 SUSPENSION LIFT KIT User Manual
Page 18
18
TM407N
Revised
6.14.13
Install Rear Suspension
1.Loosen, but do not remove, lug nuts on
each two rear wheels.
2.Using a hydraulic floor jack under rear dif-
ferential, slowly lift rear axle until rear tires
are 3-5” off ground. Position jack stands un-
der frame just forward of lower control arm
perches. Lower vehicle onto jack stands
while maintaining hydraulic jack pressure un-
derneath rear axle.
3.Remove lug nuts and rear wheels.
4.Remove four bolts and driveshaft from rear
differential. Tie driveshaft up beneath bed or
crossmember to prevent driveshaft from fal-
ling.
5.Shock absorbers
a. Remove lower bolt and nut on shock from
axle.
b. Remove upper bolt and nut on shock from
frame.
c. Remove shocks from frame and axle.
d. Install kit rear shocks to the upper and
lower mounts using the previously removed
OE hardware.
e. Repeat on opposite side of vehicle.
6. Install brake line spacer bracket.
a. Remove vent line connected to brake line
block in middle of Driver side rear axle tube
b. Remove vent line fitting from brake line
block.
Rear
Differential
Bolts
Driveshaft
Shock
Lower
Shock
Mount
Upper
Shock
Bolt
Shock