That is what I thought, Don
Being a truck discussion board, I assumed truck, but I did ask the question about the rear.
Will Patrick's 3.55 R&P set work in a car rear-end?
Will the 3.70 car R&P work on a 47-54 truck rear end (with the right carrier)?
No, car differential gears are smaller than 1/2 ton pickup, so are the axles. John