"Super Drum" Kit - 10 Clutch, w/ Roller Bearing

The Coan Racing COA‑12828A “Super Drum” Kit (10‑Clutch) is a professional-grade internals assembly built for GM Powerglide transmissions that demand maximum torque capacity and durability. This all-in-one kit features a billet aluminum central support with integrated roller bearing for precise internal alignment and stability. It’s centered around a high-strength Maximum Duty super-alloy hub, engineered to withstand extreme torque loads, and a billet steel reaction flange with 12‑point straight-cut splines for reliable clutch engagement under pressure. Specifically designed for 10‑plate clutch configurations, this Super Drum functions as the structural backbone for Coan’s COA‑12208A clutch kit. Additionally, it requires pairing with Coan’s high-performance pump assemblies (COA‑12815, 12816B, 12816B‑AL or pump stator COA‑12818A).

Ideal for serious street/strip or racing applications, the COA‑12828A Super Drum installs cleanly into standard Powerglide cases, delivering race‑ready clutch capacity, precision alignment, and drivetrain strength without the need for machining.