Hello fellas, I'm just gonna cut right to the chase: I'm gonna use a Peerless 700 transmission on my go kart. I understand they are used in lawn mower racing, so they are durable. Anyway I've done some searching around and learned a lot about them. My problem here is that i need a bigger output sprocket than the factory one (which is an 8 tooth). These transmissions were built with a fine 36 spline output shaft or a thick 9 spline output shaft. I found part numbers for bigger sprockets on heymow. The 15 tooth sprocket is 786111. The issue here is that despite my searching i can't figure out if it fits the 36 fine spline or the thick 9 spline. I have included three pictures. The first of which is the tranny with the thick 9 spline output. The second is the fine 36 spline output. The third is the factory 8 tooth sprocket. What I'm looking for in this thread is when you order one of the bigger peerless sprockets, for example the 15 tooth (786111), does it come as a 9 spline or 36 spline? Also what about a brake rotor? Fine spline or nine spline?