Spiroloc Ring (Sprag Retainer)

SPIROLOC RING (SPRAG RETAINER)

The Coan Racing COA‑22805 Spiroloc Ring (Sprag Retainer) is a precision-engineered retention clip designed to securely hold the sprag assembly in place within Turbo Hydramatic 400 transmissions. Crafted to Coan's stringent manufacturing standards in the U.S., this retainer ring ensures the heavy-duty sprag remains precisely seated under high-load conditions, which is crucial for dependable one-way clutch operation during aggressive driving and racing scenarios. 

As a direct-fit replacement, the Spiroloc ring installs seamlessly without any case modifications, offering peace of mind that the sprag assembly will stay locked and aligned, even under extreme start-up torque and spin limits, helping preserve drivetrain integrity and performance.