2004.5-2005 GM Duramax 6.6L LLY Torsion Keys

One of the easiest and most cost-effective ways to get your 2004.5-2005 GM 6.6L Duramax build up higher off the ground while providing additional tire clearance is with a torsion key leveling kit. These simple leveling kits install directly in place of your factory torsion keys for a simple, bolt-on upgrade you can be proud of. Many of these keys come 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 your Sierra/Silverado maintains a smooth street ride for everyday applications. 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.