4 speed to auto crank?

Ah so it's a matter of how deep the crank was drilled and the input shaft can't fit all the way? If all I have to do is deepen it a little that shouldn't be hard, I have a crapload of drilling, tapping, and finishing tools I inherited from my grandfather. Or would I not have to cut anything if I just use the "jeep style" pilot bearing?

When you say "cut a little off" do you mean off of the trans input shaft, that would be easier than drilling the crank but would it compromise the strength of input shaft at all?

Sorry for all the questions, I've driven manuals all my life but never tore into them to actually see how everything is connected and functions. I just know automatics from working on them in the army.