{"product_id":"stellar-automotive-group-4l60e-4l65e-reaction-shell-heavy-duty-upgrade-fits-gm","title":"4L60E\/4L65E Reaction Shell Heavy Duty Upgrade fits GM","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eStellar Automotive Group 4L60E\/4L65E Reaction Shell Heavy Duty Upgrade – Compatible for GM 1993-Up\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eEliminate reaction carrier breakage, 3-4 clutch failure, and costly rebuilds with this heavy-duty reaction shell upgrade from Stellar Automotive Group.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe factory reaction shell is a common weak point in 4L60E\/4L65E transmissions — it twists, strips splines, or shatters under high torque, big cams, or towing loads, destroying the 3-4 clutches. This upgraded heavy-duty shell features reinforced construction and improved spline durability to withstand extreme conditions, delivering rock-solid performance and preventing the \"no 4th gear\" disaster. Ideal for stock rebuilds, performance upgrades, or heavy-duty applications.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePerfect fit for popular models including:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul dir=\"auto\"\u003e\n \t\u003cli\u003eChevrolet Camaro, Corvette, Silverado, Tahoe, Suburban\u003c\/li\u003e\n \t\u003cli\u003eGMC Sierra, Yukon\u003c\/li\u003e\n \t\u003cli\u003eCadillac Escalade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eCommon symptoms this upgrade resolves\/prevents:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul dir=\"auto\"\u003e\n \t\u003cli\u003eSudden loss of 4th gear\u003c\/li\u003e\n \t\u003cli\u003e3-4 clutch slip or flare\u003c\/li\u003e\n \t\u003cli\u003eReaction carrier spline stripping\/breakage\u003c\/li\u003e\n \t\u003cli\u003eCatastrophic transmission failure under load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eEasy installation\u003c\/strong\u003e – drop the unit, replace the reaction shell during rebuild. Professional installation recommended.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e All parts are distributed, not designed or manufactured, by Stellar Automotive Group.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAdd this must-have 4L60E\/4L65E heavy-duty reaction shell upgrade to your cart today and build it to last!\u003c\/p\u003e","brand":"Trans Parts Direct","offers":[{"title":"Default Title","offer_id":52425166520501,"sku":"77749HD AFT","price":94.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1006\/3872\/0181\/files\/77749HD-AFT-scaled.jpg?v=1786613262","url":"https:\/\/transpartsdirect.com\/products\/stellar-automotive-group-4l60e-4l65e-reaction-shell-heavy-duty-upgrade-fits-gm","provider":"Trans Parts Direct","version":"1.0","type":"link"}