In my '77 Ford F-100 I installed a rebuilt 351W and behind it I had picked up a used Ford 4 speed Top loader Transmission, out of a 65 Fairlane. The origanal transmission for that truck was the old Borg Warner 4 speed, or as I like to call it the Granny Tranny (has an exceptionally low 1st gear). I'm using the same flywheel, clutch assembly, and bell housing from the original truck transmission. The bell housing bolt pattern is the same and the spline on the clutch disc is also the same. So is the throw out bearing sleeve diamter and pilot.
The Problem: I can't disingage the clutch from the flywheel, because of the input shaft and sleeve that the throw out bearing ride on, are almost 1/4" shorter than the original transmission.
Is it possible to swap input shafts from one Transmission to the other, or do I have to buy a clutch for a 65 Fairlane. If I do end up buying a different clutch will the flywheel and bell housing be different also?
Some things that have come to light; I measured the input shaft length from the face of the transmission to the end of the shaft and there is about an 1" difference in length (Top loader being shorter) It looks like I will be needing a shorter bell housing to accomidate the shorter input shaft. I now realize that I wasn't reaching the pilot bearing before, and that is creating my problem.
Does any one have any recommondations on vehicles to try for bell housings? Taking any options at this point.