Rearend changeout

In Canada, 74ups all As got discs, and the LBP. Supposedly, the slantys also got discs as standard. I have never seen a 74up a with sbp.
In Canada the 73 V8s got DBs and LBP, while the slantys usually got drums and sbp. This is not written in stone.
All the Canadian73 Scamps and Darts,with slantys, that I have come across, had sbp. I assume they were drums.
Having said that, I confess, I have not seen hundreds of these cars. Perhaps a few dozen.