i just got in this "supposedly" rebuilt rear at the stroke of midnight last night. Its in the truck everything is done the way its supposed to be, but when i pulled out of the garage it poped really loud. I figured it was the locker and it was supposed to do that. well when i pull out on to the road to leave my dads house. i get maybe 30ft away not hard on the gas and it starts grinding really bad, truck stops moving and all it is is grinding. This rear has 4:56s and a detroit locker that replaces your spider gears (lunch box locker). has anybody else had any problem like this or knows what to do? Im in a really bad situation right now because im missing school because the truck is down and its even harder to get a ride to work. So the sooner i figure out what the issue is the better. Also if you cant tell this truck is my daily driver.