TURBO XST KIT

• Includes 1-3/16" 27 spline "solid" alloy input shaft
• Cast iron stator assembly w/ 29 spline GM heat treated spline-in stator
• Billet steel forward drum
• Requires converter w/ GM 27 spline turbine
• Ford FMX 29 spline stator
• GM pump drive

The Coan Racing COA‑22881A “Turbo XST” Kit is a high-strength transmission system meticulously designed for Turbo Hydramatic 400 applications using GM 27 spline turbine converter setups. At the heart of this kit is a rugged 1-3/16″, 27-spline “solid” alloy input shaft, crafted for exceptional torsional stiffness and longevity. Complementing this is a durable cast-iron pump assembly featuring a heat-treated, 29-spline GM stator spline-in securely, ensuring consistent hydraulic flow under high-load conditions. The COA‑22881A installs directly into standard TH400 cases without machining, forming a cohesive, race-ready front-end platform.

In summary, the COA‑22881A offers a plug-and-play solution engineered for serious drag, bracket, and pro-street builds. It combines hardened internal components, torque-capable input, and efficient hydraulic control to deliver durability, responsiveness, and compatibility with XST-driven systems.