There was a recall back in 2000 for loose ball joint nuts. On this site you can go to recalls and read that info regarding ball joint nuts. If you end up having to replace ball joints, the wheel bearing and hub assemblies will have to be removed from steering knuckle so the ball joints can be replaced. You will also need a ball joint removal and installer tool kit. Found it easier to take the steering knuckle right off. Be carefull of the backing plates that you do not bend them or have them break from the rivets that hold them secure to steering knuckle.