Have cub with front belt pto. Might be 74 or close? No cub manuals here and can't find just tractor on old site. My issue is trying to update clutch with missing parts??I got a big disc for on moving lever with pad to engage. I was told I take off the button on it now on engine and put on this little plate guy gave me for disc to push on. I was told by button and snap ring was there and needed to hold on this metal disc. Wavy washer too. Right now I'm not seeing that. The button seems to be held on by 3 flat metal fingers with philips head screws. Then some sort of thin spring like parts behind it. Those screws have nuts on inside of clutch you can't reach on tractor. SO, I'm thinking the front half of clutch comes off. Three holes in outside edge look like set-screws, yet not seeing them in there. The back part has also and does have set-screws. I have those out. Nothing is loose on crank of engine yet. Are these hard to get off? What am I supposed to be doing? Was thinking of removing entire clutch and de-rusting it and see what it's about. I can't even find a parts manual to see what's there. No repair manual found yet. Finally got deck mounted and other small items, then this holding me up now. I get all the hard stuff all the time.