Sid your pic didn't load or I can't view it from phone, well any ways I got the clutch today and found the values if using a tape measure. I just looked at the end of crank shaft and thought that looks like an inch so that is the one I ordered and it it to small. I'm using an 18 HP kohler. Well story of my life, I think I'm just going to pull the crank and have it machined down just a little bit. That way it gives me an excuse to rebuild the engine too. Another question if I already have it apart is it worth it to remove the gov.