TH400 OE STD LENGTH EXTENSION HOUSING (W/ BUSHING AND SEAL)

The Coan Racing COA‑22839 OE Standard Length Extension Housing (with Bushing & Seal) is a direct replacement for the stock tail housing on Turbo Hydramatic 400 transmissions, maintaining standard external dimensions and drivetrain alignment. Made in the USA and fitted with precision-matched bushings and a proper output shaft seal, this part ensures smooth shaft support and reliable sealing to prevent fluid leaks.

It's a versatile solution for both rebuilds and performance upgrades. The COA‑22839 installs easily into factory TH400 cases without modification, offering a robust, OE housing that’s ready for high-power use.