{"product_id":"gmc-3500-sierra-2011-2026-mega-duty-kit","title":"GMC 3500 Sierra 2011-2026 | Mega Duty Kit","description":"\u003cp data-start=\"0\" data-end=\"181\"\u003eGet the best of both worlds with RoadActive Suspension® Mega-Duty — our strongest suspension upgrade engineered for heavy payloads, serious towing, and demanding truck applications.\u003c\/p\u003e\n\u003cp data-start=\"183\" data-end=\"360\"\u003e\u003cstrong\u003eMega-Duty\u003c\/strong\u003e strengthens your factory leaf springs by up to 50% while improving unloaded ride quality, handling, and overall control — without the hassle or maintenance of airbags.\u003c\/p\u003e\n\u003cp data-start=\"362\" data-end=\"457\"\u003eDesigned for 3\/4-ton and 1-ton trucks that tow and haul regularly, RAS® Mega-Duty helps reduce:\u003c\/p\u003e\n\u003cp data-start=\"459\" data-end=\"534\"\u003e• Up to 2\" of squat\u003cbr data-start=\"478\" data-end=\"481\"\u003e• Excessive bounce \u0026amp; body roll\u003cbr data-start=\"511\" data-end=\"514\"\u003e• Sway \u0026amp; axle wrap\u003c\/p\u003e\n\u003cp data-start=\"536\" data-end=\"601\"\u003eIndependently tested at the Transportation Research Center (TRC):\u003c\/p\u003e\n\u003cp data-start=\"603\" data-end=\"735\"\u003e• 23% reduction in road transmissibility\u003cbr data-start=\"643\" data-end=\"646\"\u003e• 43% improvement in pitch stability\u003cbr data-start=\"682\" data-end=\"685\"\u003e• Approximately 30% stronger spring rate than HD\u003c\/p\u003e\n\u003cp data-start=\"737\" data-end=\"905\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eThis fully mechanical 3-in-1 system combines the benefits of a helper spring, sway bar, and traction bar into one simple bolt-on upgrade with zero maintenance required.\u003c\/p\u003e\n\u003cp data-start=\"729\" data-end=\"783\"\u003e\u003cstrong\u003eIf you're squatting with your 1 ton — Mega-Duty is the answer.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*If your truck \u003cstrong\u003edoes\u003c\/strong\u003e have a factory top overload: it must be removed and RAS® HD will provide a slight improvement in suspension strength vs factory overload spring.\u003c\/span\u003e\u003c\/p\u003e","brand":"RoadActive Suspension","offers":[{"title":"Does Have Factory Top Overload Spring","offer_id":44994319745232,"sku":"3611-CMD","price":649.0,"currency_code":"USD","in_stock":true},{"title":"Does Not Have Factory Top Overload Spring","offer_id":44994319712464,"sku":"3611-MD","price":649.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0557\/7585\/4800\/files\/3611HDselects2_small_square_63aafbdf-52f4-4499-a323-1f2c70af254d.png?v=1755891238","url":"https:\/\/www.roadactivesuspension.com\/products\/gmc-3500-sierra-2011-2026-mega-duty-kit","provider":"RoadActive Suspension","version":"1.0","type":"link"}