Rough Country 900.20 User Manual
92190000
Jeep Grand Cherokee 93-98 ZJ 4” Suspension Kit
Thank you for choosing Rough Country for all 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. Check the kit hardware against the parts list on this page. Be sure
you have all needed parts and know where they go. Also please review tools needed list and make sure you have
needed tools. Always wear safety glasses.
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. 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.
Due to inconsistency of vehicles when manufactures and various options available, the amount of actual lift gained by
this lift kit could vary.
This suspension system was developed using a 31 x 10.50 x 15 tire with factory wheels. After market wheel will fit with 3
5/8” back spacing. Larger tire and wheel combinations may increase leverage on suspension, steering and related components. Consider the additional stress you could be adding on the OE components, when selecting combinations larger
than OE.
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.
PRODUCT USE INFORMATION
TORQUE SPECS:
Size Grade 5 Grade 8
3/8” 30 ft/lbs 35 ft/lbs
7/16” 45 ft/lbs 60 ft/lbs
1/2” 65 ft/lbs 90 ft/lbs
9/16” 95 ft/lbs 130 ft/lbs
5/8” 135 ft/lbs 175 ft/lbs
Class 8.8 Class 10.9
8MM 18ft/lbs 23 ft/lbs
10MM 32ft/lbs 45ft/lbs
12MM 55ft/lbs 75ft/lbs
14MM 85ft/lbs 120ft/lbs
13mm wrench
13mm socket
15mm wrench
15mm socket
16mm socket
18mm socket
18mm wrench
21mm wrench
21mm socket
19mm wrench
19mm socket
17mm wrench
Floor Jack
TOOLS NEEDED:
13/16” Socket
9/16” Socket
7/16” Drill Bit
T55 Torx Head
T50 Torx head
Jack stands
Safety Glasses
Drill
WD40
Coil Spring Compressor
KIT CONTENTS
K
A
E E
D
G
I
H H
A
K
D
I
G
J
L
Kit Contents:
9288-Front Coil Springs
9289-Rear Coil Springs
1900 Kit Box Including:
2-Fr Lower Arms (A)
2-Rear Upper Arms (B)
2-Rear Lower Arms (C)
2-Front Sway Bar Links (D)
2-Front Sway Bar Link Brackets (E)
1-Rear Track Bar Bracket (F)
2-Rear Sway Bar Brackets (G)
2-Rear Bump Stop Brackets (H)
2-Front Bump Stop Spacers (I)
1-Rear Brake Line Bracket (J)
1687Hydro Box containing:
Fr Shock-#651896BP (K)
Rr Shock-#650328 (L)
OR
1687Nitro Box Containing:
Fr Shock-#651997
Rr Shock-#650380
B
F
C
Kit Bags:
1687BAG1:
For Front Bump-stop:
2-3/8” x 3 1/2” Self Tapping Bolt
For Front Sway Bar Bracket:
2-3/8” x 1 1/4” Bolt
2-3/8” Large OD Flat Washer
2-3/8” Flange Locknut
For Front Sway Bar Link:
2–12mm x 65mm Bolts
2-12mm Flange Lock Nuts
4-12mm ID Sleeves
4-Flat Washers
B
L
C
1687BAG2:
For Rear Arm Brake Bracket:
2-5/16” x 3/4” Bolts
2-Flat Washers
2-Flange Lock Nuts
For Rear Bump Stop:
4-8mm x 70mm Bolts
4-Flat Washers
For Rear Sway Bar Drop Brackets:
4-10mm x 55mm Bolts
4-Flat Washers
For Rear Track Rod Bracket:
1-7/16” x 1” Bolt
2-Flat Washer
1-Crush Sleeve
1-12mm x 65mm Bolt
1-12mm Flange Lock Nut
1-Flat Washer
1696BAG3:
For Rear Upper Control Arms
8-Bushings
4-Sleeves
FRONT INSTALLATION
1. Place the vehicle on a level surface. Set the parking brake. Center the front wheels and chock the rear wheels.
2. From inside the engine compartment, using a 13mm deep well socket, remove the upper stu d nut, washer and bushings from the front shocks. See PHOTO 1.
3. Jack up the vehicle and place jack stands on the frame rail behind the lower control arm mount.
4. Remove the front tires/wheels, using a 13/16 deep well socket.
5. Place a floor jack underneath the axle for support and remove the lower shock bolts from the front shoc ks using a
13mm socket and wrench. Retain the factory lower bolts for reuse. See PHOTO 2.
PHOTO 1 PHOTO 2
REMOVE SHOCK FROM THE UPPER MOUNT REMOVE SHOCK FROM AXLE
6. Using a 15mm wrench and 18mm wrench for the upper bolt and a T-55 torx head for the lower bolt, remove the
sway bar links. See PHOTO 3.
7. Remove the lower track bar bolt on the axle side using a 15mm socket. Retain the factory hardware for re use.
8. The track rod will be repositioned on the axle. To do this measure directly over 3/4” , mark and drill using a 7/16” d rill
bit. See PHOTO 4.
PHOTO 3
PHOTO 4
REMOVE THE SWAY BAR FROM THE AXLE MEASURE OVER 3/4” AND DRILL
9. Using a 13mm wrench remove the driver and passenger side coil retainer. Lower the axle and remove the coil
spring. A coil spring or strut compressor may be needed to remove the stock coil. Pull the ABS sensor wire from the
stock mount. If needed, spray the line with WD40 to allow the mount on the wire to slide. See PHOTO 5.
10. Mark the original position of the eccentric cams on lower control arm. Using a 21mm socket & 18mm wrench remove
the stock lower bolt from the axle. Using a 21mm socket and wrench, remove the frame bolt from the lower control
arm. Remove the arm. Retain the factory hardware fro reuse. See PHOTO 6.
PHOTO 5
PHOTO 6
REMOVE COIL CLIP REMOVE THE LOWER CONTROL ARM
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