Direct OEM 5 Clutch Drum Assembly w/ 34 Element Sprag

DIRECT OEM 5 CLUTCH DRUM ASSY.  W/ 34 ELEMENT SPRAG, MACHINED FOR EXTREME DUTY REPLACEABLE INNER RACE

The Coan Racing COA‑22827 Direct OEM 5‑Clutch Drum Assembly is a high-performance, race-ready upgrade engineered for TH400 transmissions. Precision-machined from OEM-style housing, this five‑clutch drum features a durable 34‑element sprag for superior one-way clutch engagement during aggressive launches.

What sets this drum apart is the inclusion of a machined, extreme‑duty replaceable inner race, which significantly enhances longevity under high torque and heat. This replaceable race design allows for easy servicing and extends the lifecycle of the assembly, making it a practical yet rugged investment for performance rebuilds. Ideal for builders looking to strengthen their front end without altering stock case geometry.

In high-load racing or heavy street/strip scenarios, this assembly delivers improved torque handling, reduced slippage, and more consistent shift feel, ensuring reliable performance across multiple racing seasons.