{"product_id":"inch-ultimate-xst-inch-kit-w-1-1-4-inch-29-spline-inch-super-alloy-inch-shaft-and-complete","title":"\"Ultimate XST\" Kit w\/ 1-1\/4\" 29 Spline \"Super Alloy\" Shaft \u0026 Complete Pump","description":"\n\u003cp\u003e\u003cstrong\u003eULTIMATE XST KIT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes 1-1\/4\" 29 spline \"super alloy\" input shaft\u003c\/li\u003e\n\u003cli\u003eComplete cast iron pump assembly w\/ 32 spline heat treated bolt-in stator\u003c\/li\u003e\n\u003cli\u003e7075 billet aluminum forward drum (accepts up to 9 frictions)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eREQUIRES XST - BRUNO - LENCODRIVE CONVERTER\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe Coan Racing COA‑22880 “Ultimate XST” Kit is a top-tier transmission system engineered for high-performance Turbo Hydramatic 400-based builds. This comprehensive kit includes a rugged 1-1\/4″, 29-spline “Super Alloy” input shaft for exceptional torque resistance, coupled with a durable cast-iron pump assembly featuring a 32-spline, bolt-in, heat-treated stator that ensures stable, high-pressure fluid flow under extreme conditions.\u003c\/p\u003e\n\n\u003cp\u003eAt the heart of the kit lies a 7075 billet aluminum forward drum accepting nine friction plates, striking a balance between strength and lightweight performance. Designed for serious racing applications, the COA‑22880 requires an XST-compatible torque converter but otherwise installs directly into a factory-style TH400 case without machining, delivering a drop-in, race-ready front-end solution.\u003c\/p\u003e\n\n\u003cp\u003eMeticulously assembled in the USA to Coan’s elite standards, the “Ultimate XST” kit optimizes the transmission’s hydraulic and mechanical systems for the most demanding drag, bracket, or pro-street builds. By combining reinforced internal components, precision machining, and XST converter compatibility, this package creates a resilient, responsive foundation for TH400 transmissions.\u003c\/p\u003e","brand":"Coan","offers":[{"title":"Default Title","offer_id":49129601958107,"sku":"COA-22880","price":2520.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/4173\/0267\/files\/F198658723.jpg?v=1786548091","url":"https:\/\/suncoastperformance.com\/products\/inch-ultimate-xst-inch-kit-w-1-1-4-inch-29-spline-inch-super-alloy-inch-shaft-and-complete","provider":"SunCoast Diesel","version":"1.0","type":"link"}