Hello all, Got a stuck clutch on a 51 M. Bought it that way about a year ago, but probably won't tackle the issue until spring. After taking the valve cover off and seeing the gunked up mess of the rocker arms, etc. I can see why it's stuck. Been sitting for several years more than likely but always under cover at least. I assume you can drop the hydraulic pump and work on from underneath or split the tractor. Both ways have good and bad points. I'm sure I'll get 6 of 1 and half a dozen of the other opinions but would like to hear which works best and why. The tractor does run pretty good so it seems worth it, plus I just enjoy messing with tractors - like many of you. Thanks everyone.