Does anyone know where the heck I can get a replacement pto pully for my Johnson Workhorse Loader? I have looked everywhere online and cant find one. The pully actually has the set screws (2) inside the pully itself under the belt. All I can find are pulleys that have the set screw on the side of the pulley on a part that sticks out. This wont work because it would be too wide to fit on the pto with the originall pto pully. I have the original manual but it doesnt even have a parts diagram for anything except the frame! I think it is a 1 1/8 bore, 4inch pulley.