hey all, just about to fire up a ground up build here on a '74 c10 shorty 2wd. the cab has a high hump with the 4 speed cutout and it has the pedals but nothing more. What do I need to able to drop in a saginaw 4 speed or a super t-10? It currently has a 383/th350 setup. I have a '77 gmc high...