2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Helper Springs

Your 2004.5-2005 GM 2500HD/3500HD is a towing beast, but increased loads can cause significant rear-end sag. Helper springs give much needed additional support to 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: 2004, 2005 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.