I bought this clutch off of a member here that took it off of a TR10-D Wis. engine on a D4-10. I have disassembled it and see a couple things that need to be repaired if I'm correct in my thinking. The clutch must slide open and let the belt slip or turn on the aluminum piece in the middle of the split pulley. The Bronze bushing has about 3/16" wear inside of it on the hub I think. Also, the set screw that goes thru the inner part of the pulley hub to the crankshaft doesn't go all the way inside the to tighten onto the shaft, I think it should. I have never had this style clutch on anything and I'm just not sure about all the parts inside it. Maybe someone has a parts break down or diagram that can help me out.