Putting a modern rear axle in an a body?

Well it's not a Mopar axle but my pop just bought a 64 rambler that some one installed a 92 Ford Ranger 8.8" axle in and I measured it and it is within 1/2" of the same width of my 68 Cuda 8-3/4 axle plus it has 5 on 4-1/2" bolt pattern so it'd be a super easy install on an A-body. I bet you could get them pretty cheap at the junkyard or on Craigslist. And there are tons of parts cheap out there for them, especially on e-bay. Got a brand new set of superior gears for his off of E-bay for $80 shipped. It's a fairly decent axle too. About equal to a Mopar 8-1/4 or slightly better. Of course you'd need to cut off the factory mounts and weld on perches but that's cake work.