How to ID the rear axle?
In another thread I discovered that our Valiant has upgraded 8 1/4 diff and 11” rear drum brakes.
HOW CAN I ID A Mopar AXLE to learn if it was factory installed, or more likely, someone upgraded from a donor mobile? And if the latter then what model was it most like to have come from? Any place serial numbers engraved? Or other ways to ID the intended model?