Rust won't hurt U joints if that's what your worried about. As far as some here suggesting to just replace them, you can see he is a newbie here, and you can tell about his original question that he can't replace them himself. Therefore, if a shop replaces them, (they will rust again),do you think it's still cheap? It was a bad suggestion as far as I'm concerned. The next thing is, if they had grease all over them, they wouldn't be rusty. So, to the OP, why do you want them rust free ? it won't hurt anything, you'll replace them way before the rust will compromise the part. Have you seen your driveshafts ? there probably rusty also. There are parts that are acceptable to be rusty and not hurt them, especially cast iron. To superj above me, thanks alot for letting oil drip all over all the roads you drive, very responsible of you. I can only hope it all ends up in your drinking water. I would hope some here are smart enough not to let that happen. It it leaks oil, what happens when you go off road ? it leaks there also. It would be great if even half of you went to blueribboncoalition.com and see the battles they fight to keep trails open. Mainly because of people who go offroad and let oil drip, throw trash outside, go off the trail and run over bushes, stuff like that. Superj needs to go there and give until it hurts. Then go fix your oil leak !