2006-2007 GM 2500HD/3500HD 6.6L LBZ Duramax Helper Springs

Your 2006-2007 GM 2500HD/3500HD is built for heavy towing, but increased loads can cause rear-end sag. Helper springs offer the additional support your truck’s suspension needs by relieving the strain on factory springs. Rear sag impacts your truck’s performance when hauling heavy loads or towing, and helper springs are designed to keep your truck level under load. Whether you're towing a large RV or hauling a trailer to the job site, helper springs ensure your GM stays stable and maintains a level stance. Further enhance stability and control with our Sway Bars.  GM Duramax Fitments: 2006, 2007 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.