[njk53]

Rory you are right the small rear end and clutch was a weak link in the Valiant, Dart, and Barracuda combination with the Hi-Po option. It had that 4 inch bolt pattern wheel and at one time you couldn't find nice wheels for it. Later on Cragar came out with a wheeI. I am pretty sure though an 8 3/4 rear end out of a 62 dart fit under the Barracuda with little issue. Brings back a lot of memories mine was a fun car to drive. I would love to find an unaltered Formula S 4 speed car, but they are scarce.