although i have never set up a car rearend, i have set up multiple tractor rearends. if you are going to do this yourself i would get someone to help who knows he knows how to feel brg preload, check backlash and look at the foot print that the ring gear has on it from the pinion. i hate scaring off people who are willing to try because that is how i learned, but even now i am nervous as crap taking a tractor out on it first run after a ring and pinion job, always listening for the dreaded singing rearend.