Hello, I have been reading through the post and there is some simular to mine but they are all alittle different. I have a sunl 150 2 seater buggy with 22x11.00-10 rear tires. The motor died and i'm replacing it with a briggs & stratton 10hp with a 1" shaft. I got it all together and thought I would try a centrifical clutch bad idea because all it did was crawl and smoke. So I decided to do a little searching and came up on this great site learned alot but was wondering if a TC2 #1004/218355a comet replacement from gokart usa would work. I like the idea of bolt on and go. Or would I need to go to a 40 series? More expensive but already wasted $119.00 on a clutch I can't use. Any advise would be greatly appreciated!! Thanks for your time, Lance