The only early B 8.75 that is even close to the A Body size is from a 62 (and still won't have the perches in the right location). The downside to this axle (as well as those up through 64), is you need a brake drum puller. Even the early B guys don't like these type rear ends - they're always looking for the 65-70 B Body kind, which bolts right in to their 62-64 B Bodies. Maybe that's why it's so cheap. I'd try and find an A Body 8.75 - they're out there.
