Rough Country 663U - Manual

97-06 JEEP TJ/LJ LONG ARM UPGRADE KIT
921663U00
Thank you for choosing Rough Country for your suspension needs.
This kit is an upgrade kit only. This kit includes frame mounting points and adjustable long arms for the front
and rear.
Rough Country recommends a certified technician installs 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 all the instructions before beginning the installation. Check the kit hardware against the kit contents. Be
sure you have all the needed parts and understand where they go. Also please review the tools needed list and
make sure you have needed tools. If you have any questions please call us at 800-222-7023.
PRODUCT USE INFORMATION
As a general rule, the taller a vehicle is the easier it will roll. We strongly recommend seat belts and shoulder
harnesses should be worn at all times. Avoid situations where a side rollover may occur.
Braking performance and capabilities are decreased when significantly larger/heaver tires and wheels are used. Take
this into consideration while driving. Also, speedometer recalibration is necessary when larger tires are installed.
Do not add, alter, or fabricate any factory or after-market parts which increase vehicle height over the intended height
of the Rough Country product purchased. Mixing component brands, lifts, voids all warranties. Rough Country makes
no claims regarding lifting devices and excludes any and all implied claims. We will not be responsible for any prod-
uct that is altered.
• With the installation of this kit and larger tires it is highly recommended that an aftermarket stabilizer be added.
• A drive-shaft/SYE combination is highly recommended for the 4’ kit and a necessity on the 6” kit to correct rear
driveshaft angles and prevent vibration.
• Additionally, the exhaust system must be modified by an exhaust specialist to clear all components.
• On Rubicon models the air compressor for the air lockers on the frame by the rear of the skid plate will have to be
relocated. Refer to installation instructions for detail.
NOTICE TO DEALER AND VECHICLE OWNER
Any vehicle equipped with any Rough country product must have the “Warning to Driver” decal installed on the sun
visor or dash. The decal is to 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 to forward these in-
stallation instructions on to the vehicle owner for review and to be kept in the vehicle for its service life.
TOOLS NEEDED:
• Spring Compressor
• Silicone spray
• Drill assortment
• Hammer
• Combination
wrenches
• Floor jacks
• Wheel chocks
• 1/2” drill motor
• T55 torx bit
TORQUE SPECS:
Size Grade 5 Grade 8
5/16” 15 ft/lbs 20 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
• 11/32” Drill bit
• 17/32” Drill bit
• Torque wrench
• 1/2 drive ratchet and sockets
• Allen wrenches
• Large “C” clamps and /or bench vise
• Heavy duty jack stands
• Safety glasses
• Anti-seize compound