Rough Country 670P User Manual
92167100
JEEP XJ 84-01 3” FRONT & 2” REAR SUSPENSION KIT
Thank you for choosing Rough Country for your suspension needs.
Rough Country recommends a certified technician install this system. In addition to these instructions, professional
knowledge of disassemble/reassembly procedures as well as post installation checks must be known. Attempts to install
this system without this knowledge and expertise may jeopardize the integrity and/or operating safety of the vehicle.
Please read instructions before beginning installation. Be sure you have all needed parts and know where they go. Also
please review tools needed list and make sure you have all of the needed tools.
As a general rule, the taller a vehicle is, the easier it will roll. Seat belts and shoulder harnesses should be worn at all
times. Avoid situations where a side rollover may occur. Generally, braking performance and capability are decreased
when larger/heavier tires and wheels are used. Take this into consideration while driving.
Rough Country makes no claims regarding lifting devices and excludes any and all implied claims. We will not be responsible for any product that is altered. This kit is designed to level the vehicle, if additional list is desired contact you
nearest Rough Country distributor to discus options available.
NOTICE TO DEALER AND VEHICLE OWNER
Any vehicle equipped with any Rough Country product should have a “Warning to Driver” decal installed on the
inside of the windshield or on the vehicle’s dash. The decal should act as a constant reminder for whoever is operating the vehicle of its unique handling characteristics.
INSTALLING DEALER - it is your responsibility to install the warning decal and forward these installation instructions on to the vehicle owner for review. These instructions should be kept in the vehicle for its service.
1. Secure and properly block the tires on the vehicle on a level concrete surface. Jack u p the vehicle and place the
front of the vehicle on jack stands.
2. Remove the front wheels and tires. Support the axle with a floor jack.
3. Remove the stock shock absorbers using a 15mm wrench. The stock bolts and nuts on the bottom of the shock will
be reused. Note: Access to the upper shock studs will be obtained through the engine compartment. It also may be
necessary to temporarily remove the washer fluid reservoir to access the driver side upper shock mount nut.
4. Remove the sway bar links on both sides using a T-55 torx bit /19mm wrench and a 15mm for the upper nut .See
Photo 1.
5. Locate and remove the coil clip on the lower coil spring seat. Lower the axle to allow for removal of the coil spring.
Do not over extend the brake lines. The caliper can be removed from the rotor to allow the axle to lower.
6. If needed , use a strut compressor to remove the coil springs. Remove stock coil springs See Photo 2.
PRODUCT USE INFORMATION
INSTALLATION INSTRUTIONS
PHOTO 1
PHOTO 2
7. Using a strut compressor, compress the new Rough Country coil
PHOTO 3
spring s and install. Install coil spring clip back onto the lower
coil spring seat.
8. Attach sway bar end links to sway bar and tighten.
9. Install new Rough Country shock absorbers.
10. Install wheels and tires.
11. Jack up the vehicle, remove the jack stands and lower the vehicle to the ground.
12. Photo #3 shows the caster adjustment on the lower control
arms. The caster will have to be adjusted to insure proper alignment.
Proceed to the appropriate installation instructions for the kit with either add-a-leafs in the rear or
lifted rear shackles.
ADD-A-LEAF INSTALLTION INSTRUCTIONS
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. Rem ove 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. Separate the springs and install the provided add-a-leaf in the spring pack usin g 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. Install the tires/wheels.
9. Remove the jack stands and lower the vehicle to the ground. Tighten factory hardware.
LIFTED SHACKLE INSTALLATION INSTRUCTIONS
1. Remove the stock shackle from the frame mount using a 21mm wrench. Locate and either gri nd or cut off the excess
from the bolt pictured in Photo 4. This will allow the shackle to move rearward
2. Install the new Rough Country lifted shackle and secure with suppli ed 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 5.
3. Install the new shocks with factory hardware. Torque the upper using a 13mm wrench and lo wer bolts using 3/4”
wrench to factory specs. Repeat for other side.
4. Install the tires and wheels. Jack up the vehicle and remove the jack stands. Lower the vehi cle to the floor.
5. Torque the frame bolts, and shackle bolts to factory specs using a 21mm wrench.
6. Install the new Rough Country shock absorbers
7. Install the tires/wheels. Remove the jack stands and lower the vehicle to the ground.
8. Tighten factory hardware.
PHOTO 4
PHOTO 5
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