{"product_id":"hellwig-3511-lp-35-helper-spring-kit-ford-f-250-350-450-550-super-duty-2011-2026","title":"Hellwig 3511 LP-35 Helper Spring Kit - Ford F-250\/350\/450\/550 Super Duty (2011-2026)","description":"\u003cp\u003e\u003cstrong\u003eHellwig 3511 LP-35 Helper Spring Kit - Ford F-250\/350\/450\/550 Super Duty (2011-2026)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLP-35 four-leaf helper spring set rated up to 3,500 lb of level load capacity, for Ford Super Duty trucks that carry a heavy load full time. Per Hellwig application data: 2011-2026 F-250\/350 pickups (2WD\/4WD), 2017-2026 F-450 pickup, and 2016-2026 F-250\/350\/450\/550 cab \u0026amp; chassis. The spring rate is tunable through the U-bolts. A Hellwig 25301 mounting kit is required and sold separately, and Hellwig states not to use this kit with factory overload contact springs - trucks so equipped should use the 9703 contact helper instead. Single rear wheel applications only per the manufacturer listing. Heavy kit at roughly 66 lb.\u003c\/p\u003e\u003cp\u003eBrand: Hellwig\u003c\/p\u003e","brand":"Hellwig","offers":[{"title":"Default Title","offer_id":67711344115861,"sku":"HW3511","price":447.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/5995\/6373\/files\/HW3511.jpg?v=1792200950","url":"https:\/\/turn4diesel.com\/products\/hellwig-3511-lp-35-helper-spring-kit-ford-f-250-350-450-550-super-duty-2011-2026","provider":"Turn4Diesel","version":"1.0","type":"link"}