"Xtreme XST-3" Kit w/ 1-1/4" 29 Spline "Super Alloy" Input Shaft & Complete Cast Iron Pump

XTREME XST-3 KIT

• Includes 1-1/4" 29 spline "Super Alloy" input shaft
• Complete cast iron pump assembly w/ 32 spline heat treated bolt-in stator
• Billet steel forward drum (accepts up to 9 frictions)
• REQUIRES XST - BRUNO - LENCODRIVE CONVERTER

The Coan Racing COA‑22881 "Xtreme XST‑3" Kit is a race-ready transmission solution built for Turbo Hydramatic 400 applications running with XST-style torque converters. Precision-engineered in the USA, this kit includes a stout 1-1/4″, 29-spline “Super Alloy” input shaft delivering exceptional torsional strength, paired with a durable cast-iron pump assembly that features a 32-spline, heat-treated bolt-in stator designed to withstand high pressure and repeated stress cycles.

At its core, the package features a billet steel forward drum capable of handling up to nine friction plates, providing a strong and responsive front-end clutch hub optimized for aggressive launches and high torque build-ups. Designed for direct installation into stock TH400 transmission cases, the kit avoids complex case modifications and pairs seamlessly with XST-compatible converters.

For serious bracket, drag, or pro-street builders looking for a durable, high-quality front-end that improves clutch support, hydraulic flow, and drivetrain reliability, the COA‑22881 offers a turnkey solution engineered to meet the demands of extreme performance builds.