look carefully at the shape of the spline--they aren't exactly square , and if the spines aren't perfect they either won't support the clutch or will bind up on a tight spot and the disc won't float away from the flywheel during disengagement.
If its not a high hp/tq engine you can just relieve the input shaft to a diameter slightly less than the clutch dish spline and shorten the front end. Make sure that the nose doesn't push solid against crank or you'll wipe out thrust bearing.


Are you getting any Illinois weather down there with this storm package?