thrashingcows
Senior Member
Drilled cranks can be hit of miss, you won't know until you get the auto out of the way. All the Z-bars, A/B/C/E-body thread into the bell housing so any bell housing you get should be good to go, and if it didn't come as a factory 4 speed then you will have to weld, or fabricate the frame rail side Z-bar pivot bracket.