How to Install Rubicon Express 2.5 in. Lift Kit w/ Mono Tube Shocks (07-18 Wrangler JK 4 Door) on your Jeep Wrangler

Safety Warning: Suspension systems or components that enhance the off-road performance of your vehicle may cause it to handle differently, on and off-road, than it did from the factory. Care must be taken to prevent loss of control or vehicle rollover during sudden maneuvers. Failure to drive the vehicle safely may result in serious injury or death to driver and passengers. We recommend you always wear your seatbelt, drive safely and avoid quick turns and other sudden maneuvers. Constant maintenance is required to keep your vehicle safe. Thoroughly inspect your vehicle before and after every off-road use.

Installation Warning: We recommend that certified technicians perform the installations of our products. Attempts to install these products without knowledge or experience may jeopardize the safety of the vehicle. These instructions only cover the installation of our products and may not include factory procedures for disassembly and reassembly of factory components. Read instructions from start to finish and be sure all parts are present before disassembling the vehicle. Included instructions are guidelines only for recommended procedures and in no way are meant to be definitive. Installer is responsible to insure a safe and controllable vehicle after performing modifications. Do not perform test drives on public roads with partially completed installations. Always double and triple check your work before use.

ESP WARNING NOTE: The 2007 Jeep Wrangler JK is equipped an Electric Stability Program (ESP). This system is designed to help control the vehicle in times of uncertain traction conditions and roll stability. Due to the complex nature of this program Rubicon Express strongly suggest that after lifting the vehicle it is returned to the dealer for a computer “flash” to re address tire size and proper ESP control settings. Rubicon Express also recommends that you become familiar with the ESP controls and how the different level of settings can help you to keep better control of your vehicle.

RE7121 2 Door Standard Kit (w/o Shock):
2 RM60450 Front coil spring
2 RM60465 Rear coil spring
1 RE1380 Front bump stop kit
1 RE1387 Rear bump stop pad
1 RE1606 Rear Upper Track Bar Bracket
1 RE1478 JK Alignment plate set
1 RE1158 Extended Rear Sway Bar End Link Kit

RE7121T 2 Door Kit (w/ Twin Tube Shocks):
1 RE7121 2 Door Standard Kit
2 RXT2420 Twin Tube Shock
2 RXT2421 Twin Tube Shock

RE7121M 2 Door Kit (w/ Mono Tube Shocks):
1 RE7121 2 Door Standard Kit
2 RXJ713 Mono Tube front Shock
2 RXJ714 Mono Tube Rear Shock

RE7141 4 Door Standard Kit (w/o Shocks):
2 RM60450 Front coil spring
2 RM60470 Rear coil spring
1 RE1380 Front bump stop kit
1 RE1387 Rear bump stop pad
1 RE1606 Rear Upper Track Bar Bracket
1 RE1478 JK Alignment plate set
1 RE1158 Extended Rear Sway Bar End Link Kit

RE7141T 4 Door Kit (w/ Twin Tube Shocks):
1 RE7141 4 Door Standard Kit
2 RXT2420 Twin Tube Shock
2 RXT2421 Twin Tube Shock

RE7141M 4 Door Kit (w/ Mono Tube Shocks):
1 RE7141 4 Door Standard Kit
2 RXJ713 Mono Tube front Shock
2 RXJ714 Mono Tube Rear Shock

1. Prepare for the rear installation by removing the following items from the rear of
the vehicle: tires/wheels, shocks, sway bar end links, and the track bar at the
axle end. Keep the rear sway bar links for reuse on the front of the vehicle.

2. With the items removed, carefully lower the rear axle assembly and remove the
coil springs from the vehicle. Note the position and orientation of the upper coil
spring isolators, they will be reinstalled with the new coil springs.

NOTE: Be careful not to overextend the rear brake lines.

3. Install the replacement rear coil springs in place of the previously removed stock
coil springs.

4. Raise the axle into place and install the new rear shocks. NOTE: If the suspension
was purchased with Rubicon Twin Tube shocks you will need to install
shocks on the vehicle with the body down.

5. Install the replacement RE1158 rear anti-sway bar end links in place of the previously
removed factory anti-sway bar end links.

6. Install the rear bump stop extensions onto the axle pad with the offset towards
the front of the vehicle, using the supplied hardware.

7. Install the rear upper track bar bracket over the factory axle bracket and attach
with the supplied hardware. Use the supplied spacer in the factory track bar location
to keep the bracket from collapsing when tightening. See Photo #1.

8. Reinstall the rear wheels and check the torque on all nuts and bolts.

9. Re-connect the track bar with vehicle on the ground and at ride height.

10. Adjust the position of the brake lines, breather hoses, and ABS lines as required.

1. Prepare for the front installation by removing the following items from the front of
the vehicle: tires/wheels, shocks, and sway bar end links.

NOTE: Disconnecting the front track bar may assist in front coil removal/
installation.

2. With the items removed, carefully lower the front axle assembly and remove the
front coil springs.

NOTE: Be careful not to overextend the front brake lines.

3. Place the front bump stop on the center of the lower spring mount on the axle
tube. Insert a center punch through the center hole in the bump stop and mark
the hole to be drilled. Drill the marked hole to 5/16”

4. With the lower bump stop placed inside the new front coil spring, raise the small
diameter end of the coil into the upper spring bucket and over the lower spring
cup and bump stop pad. Rotate the coil spring so the end of the coil properly sits
in the factory pocket and install the supplied 3/8” self tapping bolt through the
center of the bump stop. Secure it to the axle. See Photo #2.

5. Install the replacement front shocks in place of the previously removed stock
shocks.

6. Raise the axle into place and install the previously removed stock rear anti-sway
bar end links in place of stock front end-links. Re-connect track bar if disconnection
was required.

7. Reinstall the front wheels and check the torque on all nuts and bolts.

1. Torque all the bolts to factory specifications. Be sure to double check your work.

2. Test drive and note the location of the steering wheel.

3. Adjust the drag link to center the steering wheel if necessary.

4. Align the vehicle as soon as possible. Set to minimum factory caster angle (3-4.5
degrees positive) and factory toe-in specifications.

5. Supplied Alignment plate kit is provided, as an aid to your alignment technician,
if needed to achieve proper caster adjustment.

NOTE: Red arrow is front of vehicle. Red outlines are the location tabs in
the factory bracket. Material must be removed from factory bracket to
get a or - caster change.

6. Recheck all bolts after 50 miles and again after every off road excursion.

 This kit is designed for the use of 35” diameter tires or smaller. If 35” tires are
to be installed, it is recommended to use 35” x12.50” tires on an 8”-9” wide
wheel with an offset of 0 to 12mm .

 If 33” tires or smaller are to be installed, the installation of the bump stops can
be omitted to allow for more compression travel.