Extreme Performance w/ Brake, Billet Aluminum Direct Drum - Reversed Pattern, 6" Extension

The COA‑31124 is a race‑focused Turbo Hydramatic 350 transmission built for maximum durability and blistering performance under drag‑strip conditions. Featuring a robust brake and a reversed shift pattern, this transmission delivers instant, aggressive launches and seamless upshifts. At its core sits Coan’s Extreme Duty sprag race, coupled with a 36‑element sprag and billet aluminum direct drum assembly, providing rock‑solid one‑way clutch engagement and enhanced torque handling during hard launches. With a five‑clutch direct drum, a lightened sun shell, and deep aluminum pan, the COA‑31124 is engineered to shed unnecessary weight while improving fluid containment and cooling. The transmission’s rugged construction is complemented by a 6″ extension housing that maintains precise tailshaft alignment under extreme load. Meticulously assembled in the USA to Coan Racing’s exacting standards, this unit is designed for serious racers who demand uncompromised reliability, structural strength, and on‑track performance.