guys im using a truck c-4 behind a 302 for my 70 maverick, today i was gonna hook the tranny behind the engine so i used a spare drive shaft yolk to plug it for no fluid leaks, and niether my spare maverick yolk or the one on the mavs driveshaft will slide in ,Ididnt know ford made a different sline count on c-4s but i assume they did what do i need to do here find one that will work on the tailsaht and also fit my drive shaft as well..
I would guess that the rear bushing is tight. As far as I know all the C4s used the same output shaft spline (except for the 4x4s that mate to the transfer case).