2007.5-2010 GM Duramax 6.6L LMM Install Kits

While you're tearing open your 2007.5-2010 GM 6.6L Duramax LMM's front and/or rear differentials, you may as well replace their key components, bearings, and seals with brand-new hardware to keep your truck running at its absolute best. We even carry a few gear and master install kits so you can get everything you need, all in one place. 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.