Lightweight Billet Steel Drum Assembly w/ 34 Element Sprag

LIGHTWEIGHT BILLET STEEL DRUM ASSY. 34 ELEMENT SPRAG

The Coan Racing COA‑22816C Lightweight Billet Steel Direct Drum Assembly with 34‑Element Sprag is a high-performance upgrade engineered for serious Turbo Hydramatic 400 builds. Crafted in the USA from precision-machined billet steel, this drum assembly offers robust strength in a lighter package compared to traditional units. It features a heavy-duty 34‑element sprag for reliable one-way clutch engagement, distributing torque loads across more rollers to reduce slippage and wear under aggressive launches and high-stress scenarios.

Designed for drop-in convenience, the COA‑22816C installs directly into stock TH400 cases without requiring machining. The combination of reduced rotating mass and increased structural integrity enhances shift responsiveness, torque transfer, and drivetrain efficiency, making it ideal for drag, bracket, or high-performance street applications where both weight reduction and strength are crucial.

In short, this lightweight billet steel direct drum assembly delivers a race-ready balance of durability and agility. It simplifies transmission upgrades by offering a direct-fit, high-strength solution that elevates performance and reliability in demanding driving environments.