You've gotten some really good replies, don't overlook the Pilot bearing sticking/seizing to the
Shaft itself. Happens every once in a while.
The Weird can happen. Someone at a previous time replaced the clutch pack assembly on my
2'nd tractor. Couldn't get the clutch play-engagement to be correct. Made a terrible Squeeling
sound when ever an implement was on the 3 point.
The posistion of the bolts for the Pressure plate and Bellhousing adapter plate had been reversed.
The loader frame was holding the halves of the tractor together! When any weight was on the 3 point
the halves would start to pry apart. Caused the splines on the shaft & disc to wear out, as well as the
Bronze pilot bushing
The bolts where all the same diameter and pitch, The shorter ones went to the clutch cover not
the adapter plate. With only one thread holding them in, they had "popped" out and where laying in the
bellhousing area.
Don't overlook anything, or take it for granted. You'll find it. Lloyd