[shorod]

It is possible to replace just the ball joint if you've found one. The ball joint is held in to the knuckle with a snap ring. You'll probably also need a ball joint press to get the old ond one out and the new one in.

Once you get the worn ball joint replaced, you really should get an alignment just to be sure. If you still have the noise, look into worn anti-sway bar end links and subframe bushings.

-Rod