Ok, it's time to lose the 7 1/4 under my Cuda. Also changing to bbp disk brakes and V8 K-member from a 74 Dart. I may use the Dart rear diff for now just to match the bolt patterns, but it's another 7 1/4.
I'm aware of the option of the B body 8 3/4. I've even read that it fills the wheelwells...