Hey Guys, My brother just mentioned something to me that has forced me to do some thinking. He has an '86 or '87 model Mustang that is just sitting around waiting for someone to tackle it. On the flip side, I have a 302/C-4/Posi 8" combo waiting for my next Maverick purchase to put it into. In the meantime, we are discussing putting my stuff into his Mustang and bracket racing it for something to do until I complete my race car. How big a problem is it to put the 8" into the Mustang? I know that most of the time, people go the reverse route, but I just have to be different. I am not interested in having to highly modify the rear to make it work. By that, I mean that I don't want to have to narrow it or anything like that. I wouldn't mind welding locating brackets or something, but I definitely want the rear to be able go into a '70 Mav that I have my eye on. (The owner is unwilling to sell at this point.) Is this possible? I haven't checked any measurements or anything yet, and will not be able to do so until at least next week. Any help would be appreciated. Thanks,
I was thinking of doing just the opposite, I had an extra 8.8 laying around. Realize that the old Mav rears are leaf spring, while the 8.8 use springs and shocks. There would be more work than is worth it to to this. The 8.8's are great rears. Do this, this is what I am doing to my '86 gt. The 87-88 t bird turbo coupe's( the 4 cyl turbo's) had the 8.8 rear, with disc brakes, and either 3.55 or 3.73 from the factory and limited slip. This is a direct bolt on to the stangs. (meanwhile converting your drums to disc!!) all you will need is to get is after market lower control arms, or drill the quad shock mounts a little lower. I was able to pick up a complete disc to disc 8.8 rear with 3.73's for $175 from a junk yard!!!!
Maxx, I don't think you want to put the 8" into a Mustang do to the completely different mounting system and the geometry that would need to be adderssed. Better to go with a bolt in 8.8 and posi out of another car. They are stronger. Given the right mounts and drive shaft, the C4 will also bolt into the car as the early ones had the C4.