Synergy 8153 - Jeep TJ/LJ/ZJ/XJ HD Adjustable Lower Control Arms - Manual

SYNERGY MFG. 870 INDUSTRIAL WAY, SAN LUIS OBISPO, CA (805) 242-0397
PPM-8153 TJ/LJ/ZJ/XJ HD ADJUSTABLE LCA
Version 1
GENERAL NOTES:
• These instructions are also available on our website; www.synergymfg.com.
Check the website before you begin for any updated instructions and additional
photos for your reference.
• These control arms are adjustable to help compensate caster and driveline angles
on lifted Jeep vehicles.
• The installation of these control arms will allow you to correctly align the axles
after a suspension lift kit is installed.
• These control arms feature a double adjuster sleeve which allows you to adjust the
length of the arm without removing the arm from the vehicle.
Installation:
1. The control arms come assembled to the shortest length. Make any length
adjustments by only turning the adjuster sleeve so there is equal thread on the flex
joint and adjuster sleeve. Make sure the grease zerk on the flex joint is aligned with
the pinch bolt on the control arm.
2. We recommend that you preset the length of the lower control arms. For 3-4.5” of
lift, we recommend a length of 16” measured from the center to center of the
bushings. This length works well when using the stock length upper control arms and
for longer upper control arms when using a CV style rear drive line. If you need to
point the pinion up to use a CV style rear driveline, try to only lengthen the upper
arms and leave the lowers at 16”.
3. Remove the existing lower control arms. If you are just replacing the lower control
arms, they can be replaced one at a time with the vehicle sitting on level ground,
without removing the tires & wheels or any other suspension part.
4. Install the new control arms with the bushing at the axle end and the flex joint at the
frame end. Position the arm with the pinch bolt and the grease zerk in the flex joint
on the top of the control arm. Reuse the factory mounting bolts.