M22 fine spline or coarse input shaft
 

I realize the difference on the insides of the M22 and the M21, but what about the input shaft? I sent a link of an auction to a pal for an M22 and he said it should have a fine spline and not course. I thought that both were avilable on the M22 depending on when it was made. Any clarification on this? https://www.yenko.net/ubbthreads/imag...ns/scholar.gif https://www.yenko.net/ubbthreads/imag...lins/dunno.gif Thanks

Re: M22 fine spline or coarse input shaft
 

All large output shaft Muncies should have fine spline input. All 1969 and earlier should have coarse spline