Get the Differential Carriers & Lockers you need to upgrade the differentials in your 2007.5-2010 Chevy/GMC 6.6L LMM Duramax. Find model-specific components offered for your 1/2-ton, 3/4-ton, or 1-ton truck. Increase traction with products like limited slip differentials, lockers, spools, and rebuild your axles with empty carrier cases, and many more products. Industry leading brands like Yukon Gear & Axle, USA Standard Gear, and Nitro Gear & Axle are available.