The factory steering components on your GM 2500HD/3500HD are sufficient for stock use, but they can underperform in heavy-duty applications and when modifications are made. Whether you’re towing heavy loads, navigating off-road trails, or running oversized wheels and tires, our selection of heavy-duty steering components will prepare your front end to tackle any challenge. We offer a wide range of upgrades, including tie rods, track bars, steering boxes, and more! Pair your upgraded steering components with a set ofWheels & Tires!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.