QT16.....Have engine out, shaft unbolted and engine pulled away. Shaft will not come off the hydro end. According to manual, that set screw in front area that allows the U-joint and shaft to move ahead is the way to shorten to put on and take off? Seems it should just slip off the hydro end? I found a set screw there, but seems to be just for fan maybe? Don't see others. Real rusty, just stuck then? My joints are real shot and not sure what will need to be done. Does not look like rebuildable joints. Hoping not to have to buy another whole shaft. I bet unobtainable or very pricey? Have any of you folks made one up and what parts did you use? This shaft is pretty big size unit, will just a 3/4 or 1" size work as well? This stock one just a hollow tube? Will I need to make the new joints, if found, be welded to that stock tube then? Is the splines on the hydro going to be some odd sized thing, not easy to find? Another frustration in trying to get this tractor going again. Problems keep coming at me as I go!