Will 8-3/4 alxes fit in the old 65 7-1/4 rear?

I have a '65 barracuda and I'm in the same boat as you. I'm either going to just save up for an A-body 8 3/4 or go B-body 8 3/4. I just dont see the logic of paying a lot of money for an 8 1/4. I toasted one once with a 375HP 318.And it did not take much either. But that is just me. Lots of people on this site run the 8 1/4 with no problems. I may get one if the price is right.