I didn't know how else to title this thread, but I'm looking to have my son's 10 bolt posi rechecked. He had a posi unit with 3.73's installed quite awhile ago and it's made a slight noise ever since. Last weekend he removed the cover to fix a minor leak and saw that one of the shims was coming out, or was broke off. Anyway, I was hoping to find someone in South OC if possible. Any ideas??