The ball joints must be replaced if any looseness is detected in the joint, or if the ball joint seal is cut.

1. To inspect the ball joints, raise the front of the vehicle allowing the suspension to hang free. Refer to Lifting and Jacking the Vehicle in General Information.
2. Grasp the tire at the top and bottom, and move the top of the tire in an in-and-out motion.
3. Check for any horizontal movement of the steering knuckle relative to the control arm.
4. If the ball stud is disconnected from the steering knuckle and looseness can be detected, or if the ball stud can be twisted in the socket using finger pressure, replace the ball joint.
5. The ball stud tightness in the steering knuckle boss should also be checked. this can be done by shaking the wheel and feeling for movement of the stud end or nut at the steering knuckle boss. Worn or damaged ball joints and knuckles must be replaced.