"Super Shaft" Alloy Input Shaft w/ OEM Drum - Use w/ COA-22812A Clutch Hub

"SUPER SHAFT" ALLOY INPUT SHAFT W/OEM DRUM (LARGER SPLINES SHAFT TO DRUM), USE WITH COA-22812A CLUTCH HUB, REQUIRES COA-22433 BEARING

The Coan Racing COA‑22810C “Super Shaft” Alloy Input Shaft is an extreme-duty upgrade crafted specifically for the Turbo Hydramatic 400, offering increased strength and engagement over the OEM shaft. Machined from premium alloy, this input shaft features larger splines that mate precisely with the matching OEM-style drum, ensuring a more secure interface and reducing the risk of spline fatigue or failure under severe torque loads. It’s built to handle the rigors of heavy-hitting drag and bracket racing environments without compromise.

Engineered for use with Coan’s COA‑22812A billet clutch hub and requiring the COA‑22433 bearing for proper support, the COA‑22810C delivers a robust, cohesive front-end assembly when combined with compatible components. Its precision-machined spline profile locks tightly into the matching clutch hub, creating a unified package that improves power transfer, stiffness, and longevity. Made in the USA, this “Super Shaft” is an ideal choice for high-performance builds where drivetrain integrity and reliability are paramount.

By upgrading to the COA‑22810C, builders gain a transmission input that’s purpose-built for power-hungry applications. Whether paired with billet drums, heavy-duty sprags, or straight-cut planetary systems, this shaft strengthens the foundation of the TH400’s front end, supporting confident, consistent performance in demanding racing scenarios.