Fresh 727 Street Strip Trans S.B. Wont Drive

Yeah the early pumps used a 1/2" wide stator support bushing and different oil supply holes to feed the clutch packs. 71 and later uses a 1" wide bushing (better, more support for the stator) and modified oil ports to feed the clutch packs.

BTW: this is something your transmission guy should have easily caught as it's clearly visible. I'd suggest looking for a different trans. guy