Ball Joint

1. Check the front lower control arm ball stud tightness in the knuckle boss whenever you inspect the front lower control arm ball stud.
2. Raise the vehicle to remove the weight of the vehicle from the suspension.
3. Grasp the tire at the top and the bottom.
4. Move the bottom of the tire in an in-and-out motion while checking for movement of the stud end or castellated nut at the knuckle boss.
5. A loose castellated nut may indicate a bent stud or a damaged hole in the knuckle boss.
6. Observe any horizontal movement of the knuckle relative to the control arm.
7. Replace the ball joints/studs if you detect any looseness in the joint or if the ball joint seal is cut.
8. Replace worn or damaged parts with the correct service parts.