A person at work has a wd/wd45 forsale but it is stuck in netural. What is the most common cause of this and how much to fix, and can a weekend mechanic fix this without splitting the tractor. What would the worst cause be, he hasn't came up with a price and I don't want to pay to much and then find out I have to spend big $ to fix it. Thanks in advance

The most common problem here is a worn shift lever. Welding or brazing and fileing to shape is the usual fix.

Is it actually stuck in neutral, or is the shift lever stuck in the neutral position, not moving, but stuck in gear? Check this by starting it and letting the clutch out. But be careful, if the tractor lugs down, push the clutch back in. If its in this neutral position and stuck in gear, perhaps the end of the shift lever, that engages the gears/slides in the trans, has worn and the gears arent fully engaging or disengaging. I had this happen on a red tractor. I pulled out the shift lever, moved the gears/slides apart in the trans with a screw driver until I had actual neutral. Then I had to weld the end of the shift lever, and grind, to what I thought was the shape it should be, and put it back in. Worked great. But if it is in neutral and you cant engage any gears, I dont have an answer. I am sure someone on this board will have one though.

Most likely the tractor is in gear but the shifter has slipped out of position. Had this happen yeares ago on a 45 with lots of hours. Slip the rubber shift boot off the shifter, remove a snap ring , and lift the shifter out. A screw driver can be used to align or pry a bit.

When I restored my WC the trans. shifter wouldn't move. The main shaft was rusted. With the help of some WD 40 and a ruber mallet I eventually got the gear to slide. I guess that is what happens when the trans. is full of water!