bolting it on the stock clutch assembly was a little iffy due to no instructions on what to reuse. I hope this helps: you will reuse all of the clutch assembly, and the variator inner bearing races (tubes in the variator hole), but not the plastic washers or stock nut. make sure the beveled washer indent is facing towards the crank case and everything is in the same order, or your gunna have a bad time. search the intarwebs if you forget what goes where.