Owner's manual
1987-1995 Jeep Wrangler YJ
2.5” and 4” Lift Instructions
18401.20 / 18401.15 - 2.5” Lift
18401.25 / 18415.25 - 4” Lift
Pg 1
Congratulations on your purchase of a Rugged Ridge™ suspension kit. To fully enjoy and understand this product
we ask that you take a few moments to read through these instructions. Before beginning the installation, read these
instructions
and the enclosed driver’s “WARNING NOTICE” thoroughly and completely. Also affix the “WARNING” decal
in passenger compartment in clear view of all occupants. If any of these items are missing from this instruction packet,
do not proceed with installation, but call Omix-Ada to obtain needed items. If you have any questions or reservations
about installing this lift kit, call Omix-Ada at 770-614-6101 for Technical Assistance or Customer Service departments.
A FEW WORDS ABOUT SAFETY:
Your safety and the safety of other motorists is very important. As the owner of a modied suspension vehicle you are the
person choosing the combination of suspension, wheels, tires and drive train that best t your intended use. Likewise, you
are the person responsible for the safety and legality of the vehicle you modify. In modifying your vehicle’s suspension,
balance your off-road capabilities against how the vehicle may actually be used off-road and on-road.
It is not practical or possible to warn about all hazards associated with modifying your suspension for improved off road
capabilities. To help you make informed decisions about safety, we have provided certain information in the form of
“Notices” and “Warnings”. This information alerts you to potential hazards that could hurt you or others.
Notice: This is a caution against anything which may cause damage to the vehicle or its equipment if the caution is
ignored. The Notice includes information about how you can avoid or reduce those risks.
Warning: This is a signal telling you that you CAN be KILLED or SERIOUSLY HURT if you don’t follow the Warning. The
Warning includes information about what you must or must not do in order to reduce the risk of injury to yourself and others.
WARNING
HIGHER ROLLOVER RISK
The suspension of this vehicle has been modied by the owner to
improve off-road capabilities. As a result, this vehicle may handle
differently than as factory equipped including increased ride-height;
reduced lateral stability and risk of roll-over or other accident. Also,
owner’s choice of larger tire and wheel combinations may require
additional braking force or increased stopping distances.
• Failure to drive this vehicle safely may result in serious injury or damage. Avoid
Sharp Turns or abrupt maneuvers. Do not drive the vehicle under any speed or
maneuvering conditions which may cause the vehicle to trip, roll, lose traction or
compromise your ability to safely brake in an emergency.
• Familiarize yourself with all vehicle manufacturers and Rugged Ridge™ warnings,
instructions and limited warranties before driving this modied suspension vehicle.
Follow recommended maintenance procedures and routinely inspect your vehicle
components for unusual wear or off-road damage.
• Always wear seat belts and/or appropriate off-road restraints, reduce your speed,
tread lightly
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and safely enjoy your off-road vehicle.
PRE-INSTALLATION NOTES:
Notice: This kit should only be installed by a professional
mechanic or individual with signicant automotive experience.
• Refer to parts list and inventory your kit to insure all parts and
hardware pieces are available before beginning installation.
Contact your independent dealer immediately if parts are missing.
• Installed lift will vary depending on vehicle options and
conguration. As a reference and important guide should technical
assistance be required, establish base ride-height measurements
before beginning installation. Park vehicle on hard, level surface.
Carefully measure the four corners of the vehicle (front and
rear –both sides) from the ground up to the center of the fender
opening above the axle. Record below and save.
Driver Side Front: Passenger Side Front:
Driver Side Rear: Passenger Side Rear:
The following Warning label is included with your
Rugged Ridge™ suspension kit and should be
placed on the vehicle visor or other conspicuous
location after installation:
RECOMMENDED TOOLS :
! Warning: Improper use of air and power tools can cause serious injury. Familiarize yourself with tool manufacturers
warnings and instructions before use. Always wear approved safety glasses.
2.5" LIFT COMPONENT BOX LISTING :
Two Front Leaf Springs
Two Rear Leaf Springs
Two 1/2" X 2-1/2" X 5-3/4" U-bolts, Round
Two 1/2" X 3-1/8" X 6-1/2" U-bolts, Round
Four 1/2" X 2-1/2" X 6-1/4" U-bolts, Round
One Hardware Bag
4" LIFT COMPONENT BOX LISTING :
Two Front Leaf Springs
Two Rear Leaf Springs
One Front Track Bar Extension Bracket
One Rear Track Bar Extension Bracket
Two 1/2" X 3-1/8" X 6-1/2" U-bolts, Round
Six 1/2" X 2-1/2" X 6-1/4" U-bolts, Round
One Hardware Bag