I know there are several articles out there on 8.8 rear swaps for older mustangs, but I want some of you guy's input. I have a 67 notchback with a pretty much stock 289, no way in the world I am ever going to overload the factory 8" rear that is in it...BUT a friend of mine has an 8.8 rear with a posi and disc brakes out of an 05 GT that he will sell me for stupid cheap...Once I take posession of this rear, how much of a hassle is it, or will one out of an 05 even fit?? I am handy with a welder, need to buy new wheels anyway, and would love the rear disc option. Comments, thoughts?