All Circle Track transmissions are custom built to Racing specifications and designed with a positive firm shift for the serious racing application.  These transmissions can be custom tailored to any application and provide the durability of a competition transmission .   

Reprogrammed valve body, added clutches, Kevlar band, hardened outer sprag race, shift improver kit,

Deep pan, direct drum spiral lock, new thrust washers and bushings, direct piston modifications to allow for added clutches in direct drum.
 

Installation Available