4
9919-161
Rev 04112018
Maintenance of QA1 Ultimate Ball Joints
Grease using high quality NLGI #2 GC-LB Lithium based grease
and check preload on a regular basis. Check and
set ball joint preload at least annually or every 3,000 miles, whichever comes first. NOTE: Preload on the ball
stud can be set with the ball joint attached to the control arm if the spring is unloaded and the ball joint taper is
free from the spindle.
1. Using the QA1 spanner socket from Ball Joint Tool Kit (p/n 1891-106) loosen the lock nut by turning counter
clockwise.
2. Using the QA1 hex key, torque the torque nut to 25-30 in. lbs. and then back off 90°.
3. Using the QA1 hex key, a ½’’ open-ended wrench or socket, and the QA1 spanner wrench, tighten the lock
nut while holding the torque nut, locking them together to 25 ft. lbs.
4. Re-check the lash on the ball stud and adjust as needed. The ball stud should not have any axial lash.
