In no particular order.
1 bellhousing not aligned to block. Are the block and bell original to each other?
2. Pilot hole in crank not deep enough.
3. Sometimes rebuilt pressure plates are not set properly so that the plate is not parrelel to the flywheel causing one side to drag.
4. Pilot bearing might need to be reamed.
1. They are not original to each other. The bell is not aftermarket.
2. I checked this before assembly but didn't make notes. The input shaft seems to spin freely when the car is on jacks and I am turning the back tires in 4th.
3. Possible. I will check. The clutch shop here is usually pretty good.
4. Its not a bushing. I did fit it over the input shaft before driving it into the crank. It does seem to spin fine in the bearing.
