The tractor originally was a rental tractor in a big city, and was sold to a construction company after it was breaking down more than they could allow. The construction company further abused it until the "bell housing" broke, and repairs were said to be more than the tractor was worth. So, it was abandoned, and I acquired it.
I am currently breaking it down to do the repairs myself, and have gotten to the point where I will need a shop manual to put it back together after I get to the real problem.
I can see the broken piece, which looks more like the transmission case rather than a bell housing. Henceforth, I need a manual.