That's weird, because if they did that, the lug pattern wouldn't match unless the 72 axle was swapped to B-body brakes and LBP axles. FWIW, it has the later master cylinder.
This is a scary car. Unknown-quality body work, rat's nest wiring, totally unknown engine internals.
Lol, it is doable in that body to go B-body 8.75 rear, just moving perches. Not uncommon. 2nd, there were & are literally THOUSANDS of A-body Mopars with the '73 & up discs paired with a factory SBP 8.75 rear axles. Big'nLittles ain't hard to find.
