Originally Posted by 1931gt
Thanks all that will get me started. The rear end is a 8' front drop out like a 66 Mustang. I checked the id tag on the to verify and it is a 83 date code. Les
If it is an 8" rear, it's not an 83, the last 8" rears were in 1978. That gives two possibilities as to what it can be. The first is 65-67 Mustang six cylinder. That would be 57.5" wheel mounting face to wheel mounting face. It should have 10" brakes. Just changing to V8 5 lug axles and drums from the same year is all that is needed. The other possibility is 76 to 78 V8 Mustang. This one will be just under 57" wheel mounting face to wheel mounting face. The bolt pattern on the housing end is different than any other Ford 8" rears. The Mustang axles will fit by changing the bearing retainers, and trimming the spline end of the axle slightly. To go to the bigger 10, or 11 inch brakes, you will need backing plates and drums from an 8" or 9" rear with a small bearing housing. The bolt holes in the backing plate have to be redrilled.