Hey guys, need some advise. My 1960 641 keeps getting stuck in 2 gears. if i start it and let the clutch out it acts like its tied to a tree and will end up stalling, even in neutral. I've taken the top cover of, wiggled the assemblies around and got it to free up. Meaning it will idle in neutral with the clutch out. As soon as i put it in gear its stuck again. Is there anything I can do short of a new trans? I'm a pretty decent mechanic, but have always shyed away from tearing into a trans. How difficult is it? Is there a rebuild kit available for these? What other tractors might have the trans i need? Any advise or answers are greatly appreciated.