2004.5-2005 GM Duramax 6.6L LLY Lift Kit Upgrades

Adding a lift kit onto your 2004.5-2005 GM 6.6L Duramax LLY build means you're going to need each component of your suspension to properly function for consistent performance in every application. After adding an aggressive lift kit to your rig, chances are some of your other suspension components won't be able to handle the stresses of your new ride height. Luckily for you, we carry various lift kit upgrades to help your suspension properly articulate throughout the entire range of travel. 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.