Originally Posted by
Josh Pease
the buggy runs a 43 tooth ring gear and a 13 tooth pinion gear with a 46 tooth spur and 13 tooth clutch bell. you can run the 10 thooth pinion in the buggy but you will have to run a 44 tooth spur with a 16 tooth clutch bell. or a 46t spur with a 14-16 tooth clutch bell this is all depending on the track you are running on. The benefits will be less rotating mass and better punch and a little smoother power transition. most of the new cars on the market run this gearing now. As for running the 13t pinion in the truggy you would have to run a 62t spur to get the gearing right. it wouldnt really help in any way. Hope this helps a little.
Actually the buggy and truggy run a 48t spur. And don't be confused, if you want to run the 10t pinion you have to use the truggy specific ring gear. Why, you say. well because the 10t pinion has a smaller overall diameter the ring gear has been adapted to mesh with it correctly. If you tried to run a 10t pinion with buggy ring gears it would not lign up properly.