8.25 rear pros

Pro it's better then a 7 1/2
Pro parts are pretty easy to come by
Pro it's an easy swap
Pro 4.5" bolt partern
Con it's only 8 1/2"
I have a stock 8 1/2" with a 3:55 suregrip an auto and 330 hp 340. I've had no issues. I'm am soon to install a 408 with about 400 hp and I believe it should be fine, but it's mainly street driven. If you have a mannual trans, or you plan on doing some hard launching you're definitely pushing it!