{"product_id":"inch-maximum-duty-inch-straight-cut-planetary-gears-only-10-clutch-super-drum-1-80-ratio","title":"\"Maximum Duty\" Straight Cut Planetary Gears Only - 10 Clutch Super Drum, 1.80 Ratio","description":"\n\u003cp class=\"page-title\"\u003e\u003cstrong\u003e\u003cspan class=\"base\" data-ui-id=\"page-title-wrapper\"\u003e\"MAXIMUM DUTY\" STRAIGHT CUT PLANETARY GEARS ONLY, COMPLETE SET W\/ HEAT TREATED RING GEAR AND BILLET SPLINED REACTION FLANGE FOR 10 CLUTCH S\u003c\/span\u003eUPER DRUM, 1.80 RATIO\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Coan Racing COA‑12787A “Maximum Duty” Straight-Cut Planetary Gear Set for 10-Clutch Super Drum (1.80 Ratio) is a top-tier gear assembly engineered specifically for high-performance GM Powerglide applications. Designed to integrate seamlessly with Coan’s 10-clutch Super Drum, this complete kit includes precision-machined straight-cut gears, a heat-treated ring gear, and a billet splined reaction flange, all optimized for the aggressive 1.80 low-gear ratio. Crafted to immense strength and tight tolerances, each component is built to endure the extreme torque loads of drag racing, bracket competition, or street\/strip performance builds.\u003c\/p\u003e\n\n\u003cp\u003eAs a drop-in solution, the COA‑12787A installs directly into Powerglide cases compatible with the 10-clutch Super Drum configuration without modification, delivering precise gear engagement, reduced power loss, and enhanced drivetrain response. Whether refreshing a race-ready transmission or upgrading a high-torque build, this \"Maximum Duty\" gear set provides the toughness, alignment precision, and reliability needed for confident, performance-driven operation.\u003c\/p\u003e","brand":"Coan","offers":[{"title":"Default Title","offer_id":49129586655451,"sku":"COA-12787A","price":1033.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/4173\/0267\/files\/F198657732.jpg?v=1786547711","url":"https:\/\/suncoastperformance.com\/products\/inch-maximum-duty-inch-straight-cut-planetary-gears-only-10-clutch-super-drum-1-80-ratio","provider":"SunCoast Diesel","version":"1.0","type":"link"}