OK! Let's try this again. I have a older model Manco Dingo, not sure exactly the model, That has a old symmetrical driven pulley. No engine or driver unit.I want to upgrade to a 30 series asymmetrical torque convertor, and I'll be using the 212cc Predator engine. This kart has the driven pulley mounted to the jackshaft turned to the righthand side of the kart. Can I mount the driven pulley on the jackshaft in the opposite direction,keeping the nonmovable sheaves aligned, without any problems, or will I have to put a reverse spring in the driven pulley? please any help would be most valuble,as it is a gift for two grandaughters. Thank you, Keith.