How do I know if my ball joint needs to be replaced?
Clunking, Rattling Noise.
Loose, Wandering Steering Feel.
Harsh Cabin Vibrations.
Uneven Wear On Front Tires. A loose ball joint in the front suspension will introduce some "play" that allows one of the front wheels to come out of alignment with the other.
What should you replace when doing ball joints? (video)