Competition Manual w/ Extreme Duty Sprag Race - Forward Pattern w/ Engine Braking, 6" Extension

The COA‑31112 is a purpose-built, professional-grade Turbo Hydramatic 350 competition transmission designed to deliver superior performance and engine braking in high-stress racing scenarios. This manual-shift unit is engineered with a forward shift pattern optimized for engine braking, improving control and consistency. It includes Coan’s “Extreme Duty” sprag race, hardened to withstand extreme torque and brutal launch conditions, ensuring reliable one-way clutch engagement and long-term durability. The transmission also features a sturdy 6″ extension housing that maintains structural integrity and precise alignment of the tailshaft assembly under load. Crafted and assembled in the USA by Coan Racing, the COA‑31112 reflects decades of motorsports expertise and meticulous machining standards, making it an ideal solution for racers seeking dependable, race-ready TH350 transmissions that enhance braking control while maintaining uncompromised performance.