3320 1995 ---parked since June 2012. slave cyl ok and with inspection plate removed I can see throwout bearings moving both engine and pto. Engine runs in neutral but gear grinds with clutch pedal depressed. I have rocked the tractor in 4th and 5th gear with another tractor but not successful. Haven't tried a heavy piece of equipment behind it yet. Not a lot of room and this would be dangerous in stopping it with the engine running. I've read other postings with this problem but other ideas are appreciated. Located in Southern USA.