Big Block 727 Tailshaft

Plus the direct drum bushing width has to match insofar as you can't put a wide bushing drum on a pump cut for the narrow one. Best bet is to get all the guts from the long tail trans just to make sure you have all compatible pieces. Oh, and not all 727 cases are compatible with all 727 valve bodies. On the passenger side, behind the accumulator, there was a change in the case casting. The wrong valve body won't cover the openings and some of the openings have a hole in the bottom that will bleed off pressure.