Rough Country 615.20 - Manual (Page 3)

10. Assemble and install new front shock absorbers Part
#651896 / 651997 Nitro. Tighten upper stem type mounts
using a 9/16” wrench only until the bushings swell slightly –
do not over-tighten, torque lower mounts to 45 ft lbs. See
Photo 8. Tighten the lower shock bolt with a 3/4” wrench.
11. Do not tighten the springs at this time. The spring hardware
will be tightened once the vehicle is on the ground and the
suspension has been cycled. Tightening the hardware at
this time with the vehicle off the ground could result in a
stiff ride.
12. Install tires/wheels, remove jack stands and lower vehicle
to floor. Tighten the front spring’s shackle to 95 ft. lbs. and
the stationary end to 105 ft. lbs.
13. Reinstall the stock sway bar links with factory hardware.
Tighten with a 3/4” wrench.
Photo 8
REAR INSTALLATION INSTRUCTIONS
1. Chock the front tires and jack up the vehicle. Place safety jack stands under rear frame rails.
2. Remove the rear shocks from the shock mounts using a 3/4” wrench on top and bottom. Retain hardware for reuse.
3. Remove the stock u-bolts from the axle using a 3/4” socket
4. With the axle at full droop. Position a floor jack under the axle for support and remove the leaf spring hardware se-
curing the springs to the frame and shackles using a 3/4” wrench for the shackle end and a 13/16 & 11/16 for the
frame end. Retain the factory hardware for reuse.
5. Remove the rear springs from the frame mount and the shackles.
6. Install with the stock bolts to the stock location.
7. Install new springs part # 8012 with shims. (torque u-bolts 65 ft. lbs.) When installing the springs the thick part of
shim goes toward front of jeep. Do not fully tighten the springs and the track bar to factory specs until the ve-
hicle is on the ground. Tightening before the weight is on the vehicle may prevent the shackles from mov-
ing to their natural position and result in the arched spring being pinned forward against the frame.
8. Assemble the rear shock absorbers. Part# 657341 / 657342 Nitro with loop bushings and corresponding sleeves and
install shocks, torque upper and lower mounts to 45-ft. lbs using a 3/4” wrench. With the addition of shackles or any
other extra lifting device there may not be adequate clearance between the shock body and the axle tube. In this
situation your only option is to relocate the shock bracket.
9. Install tires/ wheels.
10. Remove jack stands and lower vehicle to floor. Tighten the shackle to 95 ft. lbs. and the frame end to 105ftlbs.