Invite a strong friend over to assist. Not a 1 person job lifting an moving. I pulled my engine and transmission a couple of weeks ago. I have done a couple of transmissions. They are easy to work on. Greg Bender, This old tractor has manuals. Some things are not explained fully, but there are pictures. I like pictures. The only thing I had an issue with was putting the cover back on. The shift drum has two notches to allow the shifter to clear. Once I figured the notch alignment out, it dropped right on with a few taps of the hammer the last 1/4 inch. A bent clothes hanger works to get the shifting forks back into the drum. Replace the front and rear seals and o rings. The diagrams for the o ring placement on the output shaft are wrong. Should be (starting from the inside) washer, oring, washer, speedo drive. The drawings have the oring against the spline, washer, oring, speedo drive, which is wrong. If you do it the way the drawing shows, the oring is pushed up on the spline and is useless. The front bearing nut is a pain to get off. I beat mine off with a punch as the drawing shows, but bought a 26 mm socket for $6.00 and made a bearing retainer nut wrench. About an hour of work to make. Or you can buy one from M.G. Cycles. Mine is not pretty, but it worked to reinstall the new nut I had to buy.