Quote Originally Posted by More Power View Post
In looking through my 2001 GM service manuals I noticed that it does not include ball joint replacement info for the upper control arms, though it does contain R&R info for the control arms and ball joint replacement info for the lower ball joints.

Does this mean the ball joints used on the upper control arms are not replaceable?
Interesting, I purchased a rockauto moog upper ball joint. http://www.rockauto.com/en/moreinfo....270&cc=1432943

Maybe the control arm isn't intended to have a new ball joint pressed in. At this point I'm considering just pre-emptively replacing the passenger side upper control arm. I'd be out $50 but that's a bargain compared to the worst case scenario.