My 69 GS is an original 4 speed car. The previous owner swapped a Chevy 350 in and I’m planning on putting a low mileage 70 455 in. I plan on reusing as much of the original 4 speed parts currently on the car as possible but would like to make sure I pick up all the needed BBB specific 4 speed parts. So far I’ve got a z bar on the way that I just bought. What else do I need that is specific to BBB? Any companies selling repops? I’ve got a Bellhousing/cover coming, will be buying a flywheel and clutch set up in the future.