ok guys...going to jy's today for a new rear end since I could replace the whole thing for just as much if not less than just my ring and pinion. I need yalls help with something...i don't know what gears I have, and I don't know if I need the new ones to match up, or can I upgrade? They said they have 7.somethings and 8.8's I was wondering what would be best for my 2wd and what gear ratio I should get and what trucks/suvs came with what I want.