Achieving extra inches of lift height is perfect to give your truck an imposing on road stance while improving off-road capability. Here at Alligator Performance, we carry a selection of torsion key leveling kits that offer up an inexpensive way to get your GM 2500HD/3500HD higher ground clearance. These torsion keys install directly in place of your factory torsion keys for a simple, bolt-on upgrade you can easily do at home. Many of our torsion keys are completely adjustable so you can set your desired ride height for the custom look you always wanted. Better yet, these kits won't drastically affect your truck's ride quality or comfort, ensuring you'll maintain a smooth street ride without compromise. Check out our selection of Lift Kits for a full suspension overhaul! GM Duramax Fitments: 2007, 2009, 2010 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.