Hey guys, I went to Tractor supply and bought an overrunning clutch that slides onto my PTO to use between the brushhog... I seen this would be a smart investment with the set-up, and I'm sick of getting push around while mowing! So I got it home, went to install it and the clutch would not slide on for enough onto the tractor's PTO shaft to have the pin be able to slide through the groove on the tractor shaft. So, either my Model M PTO shaft is too long or the Overrun clutch is not deep enough to accommodate. Is this overrun clutch a standard depth or can/should I look for a deeper one? Would I need to shorten the PTO shaft by an inch or so to make it work? Anyone else ever have this issue?