OFF-ROAD XST KIT

• Includes 1-1/8" 35 spline "solid" alloy input shaft
• Cast iron stator assembly w/ 27 spline GM heat treated spline-in stator
• Billet steel forward drum
• REQUIRES GM CONVERTER W/ 35 SPLINE AOD TURBINE

The Coan Racing COA‑22881C “Off‑Road XST” Kit is a premium transmission package tailored for Turbo Hydramatic 400 builds employing GM converters w/ 35 spline AOD turbine. This high-performance assembly includes a robust 1-1/8″, 35-spline solid alloy input shaft designed for maximum torsional strength and resilience during intense off-road or racing use. It also features a durable cast-iron pump assembly with a heat-treated, spline-in 27-spline GM stator, ensuring consistent hydraulic delivery in demanding environments.

Complementing the strong foundation is a billet steel forward drum, delivering reliable clutch engagement and longevity under heavy loads. While it installs directly into stock TH400 cases without modifications, the kit requires a GM converter equipped with a 35-spline AOD turbine to complete the setup.

Ideal for off-road, bracket, or extreme street performance use, the COA‑22881C combines race-grade materials, precise machining, and proven torque converter compatibility into a turnkey front-end system, offering enhanced strength, hydraulic consistency, and drivetrain durability.