Lower Ball Joint
1. Raise front of vehicle and support both lower suspension arms with safety stands. Place stands as far outboard as possible. Upper arms must not contact rebound bumpers.2. Clamp dial indicator to lower suspension arm, position plunger against knuckle arm and zero indicator.
3. Pry tire/wheel up and down and measure knuckle's axial movement with respect to suspension arm. Replace ball joint if travel is 0.020 inch or more.