Suncoast Converters 7075 Billet Aluminum Forward Drum w/ 300M Alloy Input Shaft TH Spline COA-32813

The Coan Racing COA‑32780A Lightened Input Ring Gear is a race-grade upgrade engineered for TH350 transmissions. Crafted from OEM-grade materials and precision-machined to reduce rotating mass, this gear enhances throttle response and shift performance without sacrificing structural integrity. Notably, it is specifically designed to be used in conjunction with Coan’s billet forward drum series - COA‑32812, COA‑32813, and COA‑32814, ensuring seamless compatibility and optimal engagement when paired with these advanced drum components. Installation is straightforward, requiring no housing modifications, and the gear delivers noticeable improvements in drivetrain agility and responsiveness ideal for both street/strip and high-level competition applications. Overall, the COA‑32780A caters to transmission builds that demand race-inspired efficiency, acceleration, and durability.