Technical Muncie input shaft no good?

Yeah I'm just not sure if the ones supplied are long enough.

I know normally the input shaft has some space that's not being used on the pilot but I'm not sure how much before the bearing would hit the splines. I'm not sure if my measurements are correct,it's hard to measure from the bellhousing face to the pilot hole ridge.

And I also ***ume since the crank is concaved,a lot of the pilot shaft actually sticks out past the bearing inside essentially not needing to be that long. (If that makes sense) I could also be wrong on that

 

Don't know about Muncies, but do know toploaders. I've used broomsticks cut to the length of the inside of the case (so the cluster can just drop in) and packed the needle bearings (and thrust washers) with bearing grease to keep them from dropping.
I'm unsure why a few are saying pilot bearings have much load on them. They merely maintain center of the input and clutch disc with relatively little side load. If a pilot bushing gets "wallered out" there's bigger issues.....

 

I don't want to change the input if I can get around it.

Yes,I do believe you are right. More than one person I've talked to has said that. I don't think it's going to hurt to run this input with less surface area. Not like I have 500 hp and powershifting a m22. Just 'spirited' hotrodding

 

one way you could figure it out, is to put something like clay on the pilot, then install the transmission, and then remove it and see how thick the clay got squished to. If the clearance between the spline and the pilot bushing is not very large, and most of the pilot bushing is being contacted by the pilot, then it will probably be fine.

you could also put a straight edge across the bellhousing, and measure in to the pilot bushing, and compare with the measurement on the transmission input shaft distance from the front of the case

 

Clay! That's a good idea. I tried measuring but wasn't good at it.