EXTENSION HOUSING (W/ BUSHING AND SEAL)

The Coan Racing COA‑12838 Extension Housing (with Bushing and Seal) is a precision-manufactured replacement component tailored for GM Powerglide transmissions. Designed to OEM specifications, this extension housing comes pre-fitted with a high-quality bushing and seal to assure proper alignment and reliable sealing of the tailshaft area. By integrating these components at the factory level, Coan eliminates the hassle of separate installation and reduces the risk of misalignment or seal failure.

Ideal for both standard maintenance and high-performance builds, the COA‑12838 ensures accurate tailshaft rotation, minimizes fluid leaks, and supports long-term drivetrain durability, all in a direct-fit assembly that installs seamlessly into your Powerglide case.