I was searching for some other parts on my old swap meet truck and uncovered this bell housing. It is GM part#6263756 and is a truck housing that was formed to take a larger clutch and pressure plate(12" disc). A bushing is needed to use a Muncie or T-10 but I believe these are available as I have sold a few of these housings before. This is the last one I have and it is bead blasted and nice! One of the inspection cover bolts were broken off and would need to be drilled and extracted. Pics tell it all. Part is at my warehouse in NW Detroit but I can bring it home near 11&Woodward too. Call if interested. Thanx