[mgarblik]

Originally Posted by Ronj1969

I think I’m going to go with a 66-67 Muncie m20 as I believe the pressure plate,Clutch disk,output yoke and Drive shaft should all be the same ? Does this sound true ?

66-70 M20 would be a direct bolt in. 10 spline input, larger 1" countershaft diameter, small, 27 spline output, same overall length as a Saginaw. 64-65 M20 would be a direct bolt in as well, but smaller, weaker 7/8" countershaft and some other modest internal changes to the synchronizer assemblies. It would work if you happen to find one. 66-70 is a better gear box.