Rough Country PERF689 - Manual (Page 11)

REAR INSTALLATION
This section will be used as reference when the add a leaf and shackle are installed. If leaf springs are used pro-
ceed to the next section.
1. Remove rear factory shocks using a 13mm wrench on top and a 3/4” wrench on bottom and retain hardware.
2. Chock the front wheels and jack up the rear of the vehicle and place the vehicle on jack stands. Remove the wheels
and tires.
3. Working from the drivers side, remove the factory u-bolts and lower the axle with a floor jack. Repeat for passenger
side.
4. To install the add-a-leafs if purchased with the kit; separate the springs and install the provided add-a-leaf in the
spring pack using a pyramid pattern smallest on the bottom graduating to largest on top. The factory flat overload
leaf should remain on the bottom of the pack (if equipped).
5. Clamp the spring with the c-clamp and tighten with the supplied center bolt with the nut on top of the spring and to
not leave a gap between the springs. Cut the thread of the bolt smooth with the nut.
6. Realign the center pin in the leaf spring pack to the centering hole on the axle perch.
7. Install new bend clips on spring.
8. Remove the stock shackle from the frame mount using a 21mm wrench. See Photo 1. Locate and either grind or cut
off the excess from the bolt pictured in Photo 2. This will allow the shackle to move rearward.
9. Install the new Rough Country lifted shackle and secure with supplied 9/16” x 4” hardware in the top hole and the
14mm x 110mm in the bottom hole. Do not fully tighten the hardware at this time. See Photo 3.
10. This kit includes 2 3/4” & 3” diameter u-bolts for rear axle options on the Jeep. Confirm axle diameter and use appro-
priate u-bolt. Install the u-bolts and torque to factory specs using 3/4” wrench.
11. Trial fit the new shocks with factory hardware on the axle and make note where to grind the stock mount to allow the
shock to be installed. After the area is marked, remove the shock and grind the area. See Photo 4. Reinstall the
shock and check to make sure the shock is not contacting the stock mount. If it is repeat the procedure. If not tighten
the shock bolt and washer. Do not over tighten the lower shock mount. When tightening the bushing should
swell slightly. Torque the upper using a 13mm wrench and lower bolts using 3/4” wrench to factory specs. Repeat
for other side.
12. Install the tires and wheels. Jack up the vehicle and remove the jack stands. Lower the vehicle to the floor.
13. Torque the frame bolts, and shackle bolts to factory specs using a 21mm wrench.
PHOTO 1
PHOTO 3
PHOTO 2
Remove the spring from the shackle Grind the bolt pictured as needed
Install the shackle with stock hardware
PHOTO 4
Grind the factory shock mounts