I searched till I was blue in the face to find an aftermarket source for those clutches. Even having the factory part number( warner makes them) didnt help. I had to get my low side clutch from Bobcat. Not long after my high speed clutch coil went out. I rewound that coil with Copper magnet wire I got off Ebay. I think that was last year. Still going strong.How have you tested that 2 speed clutch? It could be a simple ground or switched 12V connection. Have you attempted to use a jumper wire to verify as listen for the audible clicking? It could also be that the key in the PTO/Crankshaft has sheared and not engaging. ShowMeGuy
They can be found in the parts catalog:i know this is an old post but anyone have part numbers for the clutches