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I just did this job last week on my TO35. Based on the shop manual it looks to be much the same on the later MF35 as well. #1 biggest concern for me was in removing the wheels safely. Mine are water filled and have the accessory weights ... so many hundreds of pounds there. I used a cherry picker style engine hoist and a length of chain along with a friend. The parts listings on this website list a complete kit of both seals, the bearing and the new collar you will need for around $50 per side. A good deal. Also know that of course you need to drain the gear lube out of the monster before you pull the axles. Otherwise you will have a big mess. Be prepared for the fact that 8 gallons of gear lube is used, so have big catch pails when you empty it. You could just empty the rear drain plug, but I emptied the whole system. This is a good time to freshen the PTO output seal and O ring. I did so on mine and was surprised to find that the PTO output bearing was cracked and needed replacement. Make sure to have a MF service manual on hand, it details the procedures very well. Removal of the locking ring from the axle is done with a combination of drilling and cold chiseling. Not hard if you take your time and are comfortable with those tasks. Removal of the bearing requires a hydraulic press. I used my 20 ton Harbor Freight job which was fine. The most exciting part of the operation is reinstallation of the locking ring. This part is about 10 thou interference fit on the shaft. You have to get it glowing red hot with a torch then quickly slip it into place. Again I did this job with a partner and both of us are experienced so it was kind of fun and exciting, but if you are not comfortable with shop presses and torches you might not want to take on the job. Enjoy,
John
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