Rear end swap questions

[Fine59]

I have searched through everything I could find, but haven't come across anything detailing swapping in a 73-87 rear end into a 66 suburban, I know the 73-87 rears are 1 1/2 inch wider than the stock 66,what I'm trying to find out is if I do this swap can I run a 15x8 rally wheel and have clearance in the wheel wells? Anyone ever do this?

I've swapped the front suspension from my 87 parts truck and it fit like a glove, just trying to figure out how the rear will fit in one of these suburbans, I'd rather use what I have instead of spending $ on new axels and brake drums