2007.5-2010 GM Duramax 6.6L LMM Differential Covers

The factory differential cover equipped on your 2007.5-2010 GM 6.6L Duramax works fine for basic everyday applications, but it certainly doesn't offer the best protection or utility for high-performance applications. Here at Alligator Performance, we carry a range of aftermarket differential covers to give your Sierra/Silverado a boost in overall performance each time you get behind the wheel. Our premium selection of covers work to keep contaminants out of your crucial driveline components while making general maintenance on your differential and gears a breeze. Protect your Sierra or Silverado's valuable and vulnerable underside with the addition of an aftermarket differential cover today! 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.