The factory steering components on your GM 2500HD/3500HD work adequately for stock use, but they fall short for heavier-duty applications and with trucks equipped with modifications. Whether you're towing heavy loads, tackling off-road trails, or running oversized wheels and tires, our selection of heavy-duty steering components ensures your front end is equipped to handle any challenge. We offer everything from upgraded tie rods, track bars, steering boxes and more! Pair your upgraded steering components with a set ofWheels & Tires! 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.