Rough Country 685.20 User Manual
98 jeep zj 1¾” lift kit
Page 1
Rough Country recommends this system be installed by a certified technician. 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. Check the kit hardware against the parts list. Be sure you have all 
needed parts and know where they go. 
With the installation of all lift kits and larger tires it is important to check the condition of your steering stabilizer. If the 
stabilizer is worn or is leaking it should be replaced. Steering stabilizers are designed to restrain “bump steering” and front end 
vibration, giving added life to tires, ball joints, and other steering components. A multiple stabilizer kit is recommended for 
vehicles equipped with a snow plow, winch, or larger tires 
 
PRODUCT USE INFORMATION
As a general rule, the taller a vehicle is, the easier it will roll. Offset, as much as possible, what is lost in rollover resistance by 
increasing tire track width. In other words, go "wide" as you go "tall". Many sportsmen remove their mud tires after hunting 
season and install ones more appropriate for street driving; always use as wide a tire and wheel combination as possible to 
enhance vehicle stability. 
We strongly recommend, because of rollover possibility, that the vehicle be equipped with a functional roll-bar and cage 
system. 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 significantly larger/heavier tires and wheels are used. Take 
this into consideration while driving. 
Do not add, alter, or fabricate any factory or after-market parts to increase vehicle height over the intended height of the Rough 
Country product purchased. Mixing component brands is not recommended. 
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. 
If question exist we will be happy to answer any questions concerning the design, function, and correct use of our products.
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 
INSTALLATION INSTRUCTIONS
1. Park the vehicle on a level surface and chock the rear tires. Jack up the front of the vehicle and support the front of the
vehicle with jack stands. Remove the tires and wheels. Remove the stock shock absorbers.
2. Place the floor jack underneath the axle. Jack up the floor jack to apply a slight
load to the coil springs.
3. Remove the upper sway bar bushing assembly. Remove the coil clip on the
lower coil mount. Save the stock hardware, it will be reused. Lower the jack to 
unload the coil springs. But do not totally remove the floor jack. 
4. Remove the stock coil spring. Repeat this procedure for the opposite side. 
5. Remove the stock bump stop. See Figure #1. 
6. Remove the bump stop mounting cup as shown. See Figure #2. 
7. Install coil spacer as shown. A rubber hammer may be used to get the spacer 
into position. See Figure #3.
Figure # 1
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92-98 JEEP ZJ 1¾” LIFT KIT