{"product_id":"suncoast-coa-12804a-super-shaft-aerospace-alloy-input-shaft-12-7-8-shot-peened-turbo-splines","title":"Suncoast \"Super Shaft\" Aerospace Alloy Input Shaft, 12-7\/8\", Shot Peened - Turbo Splines","description":"\u003cp\u003e \u003c\/p\u003e\n\n\u003cp class=\"page-title\"\u003e\u003cstrong\u003eSUPER SHAFT AEROSPACE ALLOY INPUT SHAFT, TURBO SPLINES, (SHOT PEENED) 12-7\/8\" (FITS 1.69, 1.76, 1.80, 1.89, 1.96, 2.03)\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003eThe Coan Racing COA‑12804A “Super Shaft” Aerospace Alloy Input Shaft (Turbo Splines, Shot-Peened, 12-7\/8″) is a top-tier drivetrain upgrade designed for GM Powerglide transmissions paired with torque converters requiring turbo-style splines across various low-gear ratios (1.69, 1.76, 1.80, 1.89, 1.96, 2.03). Crafted from aerospace-grade alloy and shot-peened for enhanced surface durability and fatigue resistance, this shaft dramatically improves tensile strength and longevity under high-load conditions.\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003eIts precision-engineered turbo splines ensure accurate torque converter engagement while maintaining OEM fitment, delivering seamless installation without machining. Ideal for high-horsepower street builds or competition use, the COA‑12804A provides racers and builders with a bulletproof input shaft solution that boosts reliability, torque handling, and confidence in Powerglide transmissions.\u003c\/p\u003e","brand":"Suncoast Performance","offers":[{"title":"Default Title","offer_id":48219452735729,"sku":"COA-12804A","price":1135.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/1344\/3057\/files\/Super-Shaft_-Aerospace-Alloy-Input-Shaft_-12-7-8_-Shot-Peened-Turbo-Splines-Suncoast-Performance-151324792.jpg?v=1779831741","url":"https:\/\/tamelessperformance.com\/products\/suncoast-coa-12804a-super-shaft-aerospace-alloy-input-shaft-12-7-8-shot-peened-turbo-splines","provider":"TAMELESS PERFORMANCE","version":"1.0","type":"link"}