I have a later mode John Deere A. I have been trying to get the clutch to operate correctly. When I tore it apart due to slipping I thought that it would be an easy fix when I found the threads on adjusting bolts were worn out allowing nuts to move. I replaced clutch adjusting bolts and no luck. I then replaced all fiber discs. To get clutch to pull you have to adjust it so tight it won't disengage and go get it to disengage it will not pull. I thought maybe the clutch drive disc going too far on crank. I replaced it with a new one. It don't go quiet as far on crank. No help with that either. Last night I replaced housing bearing thinking it could be binding up and dragging when clutch disengaged. I also replace clutch dogs toggles and pins while I was InThere last night. I put back together and you still have to run adjusting nuts way past second hole for key to get clutch to pull. Thank you all for any insight you may have.