As far as I know the rear end was the same as the one I had before. Im not sure if the other car was manual or auto. Mine is manual. I do know that the car it came from belonged to an elderly women who got t-boned and died in the car. The wrecker told me the passenger side door was in the driver's seat. It may be possilbe that the rear end is haunted. I did have my friend and his dad (the own a body shop) look at the car. We jacked the end up and put it in gear and we were able to rotate either wheel backwards while the other was going foward. blah blah blah, the diagnosis was that the two "side gears" are messed up. Im not a mechanic so i may be butchering terms.