Was just wondering if anyone can help with what rear end I have? I think it's a Frankenstein. The diff sticker is B2B 3.545. The diff feels like a mechanical lsd when I drive it. The joints on the diff end of the axle look like 3 bolts, and the hub ends are 4 bolts. Axles are 27mm. You'll have to excuse the oil leaking out of the pinion. A diff rebuild is third on the list below timing belts and brake rotors.