2004.5-2005 GM 2500HD/3500HD 6.6L LL Duramax Towing Upgrades

Your GM 2500HD/3500HD is designed for towing heavy loads, but upgrading key components can further boost its towing capabilities. We offer a range of durable hitches with high load capacities and tongue strength, as well as upgraded receivers and more. Our selection also features extended helper springs and air spring kits, specifically designed to support heavier loads and prevent rear-end sag. Whether you're towing an RV or a heavy trailer, we have the upgrades you need for safe and efficient towing. Pair your towing upgrades with our selection of Brake Upgrades.  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.