Yes the ball joint squeak is insane. You can almost look at it and make it squeak. On the control arms, you have to hit a liltle more of a bump to get a squeak. Oil does help for a while on the ball joints, not so well on the control arms........ I guess that could be a way to find out exactly which of the three items are squeaking. Either way, the op should just replace all the items. With all the parts, and tools ready to go, this is an easy Saturaday project. I think it took me about 5-6 hrs the first time. I split it up, two evenings after work.