Synergy 4129/29-01 - Jeep XJ Heavy Duty Front Ball Joints - Manual

SYNERGY MFG. 870 INDUSTRIAL WAY, SAN LUIS OBISPO, CA (805) 242-0397
HEAVY DUTY BALL JOINTS
PPM-4129
PPM-4129-01
Version 1.3
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.
• Refer to the factory service manual for general installation instructions for ball
joints, these are no different, any important differences are noted below.
• A special ball joint C-frame press and adapters are required for installation. OTC
and Miller special tools have quality tools available.
• Lubricate the ball joints at every oil change using Synergy High Performance
Chassis & Bearing Grease (PPM-4119).
• These HD ball joints carry a 12 month unlimited warranty. Available to the
original purchaser from the date of purchase and are non transferable.
1. Remove the boots prior to installation to prevent damage. Do not forget to
reinstall them prior to installing the knuckles
2. Install the ball joints using the factory service manual as a guide.
3. Replace the tapered threaded sleeve in the steering knuckle prior to reinstalling
the knuckle onto the vehicle.
4. The included sleeve should be installed from the bottom with the slots facing
down. Thread in the new sleeve until it is .206” recessed into the knuckle. The
top of the sleeve should be approximately flush with the top of the threaded
portion of the knuckle.
a. We recommend using anti-seize on the threads to prevent galling and
seizing.
5. Torque the lower ball joint nut to 75 ft-lbs, then tighten the upper ball joint nut to
75 ft-lbs. Further tighten to align the cotter key holes, do not loosen to align the
cotter key.
6. Orient the lower ball joint so the grease fitting is pointing forward.
7. Wait until the ball joints are installed to install the grease zerk fittings.
8. Recheck caster on vehicle after new ball joints have been installed as worn ball
joints could result in an increase in actual caster due to excessive play.