need brake backing plates for new bb axle swap

Im swapping my small bolt pattern axles out for bb pattern axles and I think the old ones won't work in the bb axles even though they came off a 8 3/4. Correct me if I'm wrong it's been a while

A body axles have a different offset (the hub sticks out further) and have to be used with A body backing plates and A body drums only. If you convert to BBP by redrilling the old A body axles, you cannot use B/C/E/Truck backing plates and drums. You have to redrill your a body drums to BBP and use them and the stock a body backing plates.

If your BBP axles are aftermarket, or cut down & resplined B/C/E body axles then you will need the B/C/E/ or truck backing plates and drums. They can come off of ANY 8 1/4, 8 3/4, 9 1/4, or 9 3/4 rear (and some late 7 1/4 rears with bbp.

Just remember that the backing plates have to match the axles. A for A or b/c/e/truck for non A axles.