That's an expensive model. Mind if I ask how old it is and how well it has served you? I'm in the market for a rototiller but spend enough time at the shop with my Jaguar as it is. Considering the cost of replacing a model like the Horse, why not just take it to a dealer and get it fixed correctly? Here is a link that might be useful: Toro Tiller

I finally got things undone. Had to pry off the belts. Put on new ones & guess what--as soon as I put the tiller in forward, the new belts jumped off the pulley. On close inspection, the pully is out of allingment with where it should be & needs to be shimmed. I took it to the dealer. They ground down the pulley and shimmed it and now all is supposed to be well, although I haven't tried it yet. It took them all of ten minutes to fix. & cost me $50. Where oh were did my little horse go? All I would have had to do is get a $ worthe of shims, and I could fix the problems myself. Funny thing is I called Troy Bilt (MTD). They said they found me in their computer and that my lifetime warranty was changed by them to a ten year warranty. I had two years left in the ten. However, when I took the tiller in to be fixed, I was told it has NO warranty and whoever told me it did (which was more than one person) was wrong. they said they called troy-bilt to confirm that there was no warranty. Troy bilt that they spoke to said that is right. Funny the stories you get. I'm a bit peeved at TB (MTD). To be told my lifetime warranty from the original troy-bilt was no good, but they put a ten year warranty on those tillers, then I try to get my tiller fixed, under the warranty, and am told I have no warranty. I hope I'll never have to do business with this company again.

You need top off transmission drain oil so see shifting fork look close at shoes on fork. There wood ruff key on back trans mission check that sheared off to inside Bell crank. Troybuiltgroups dot com one looking for.

If your wheels turn, and the tines do not, its probably the insert in the shaft coupling that delivers power to the rear (tine)assembly. The shaft coupling is also called a 3-jaw coupling or an Oldham coupling, and consists of 2 halves and a 6-point star looking insert made of plastic or bronze. Take your rear assembly off (2 bolts) and check out the exposed coupling. If the insert is missing, that is your only trouble. I am also looking for this part p/n or source. Good luck!