Shop Differential Covers and upgrade the front or rear axle in your 2003-2010 Chevy/GMC Kodiak/TopKick 6.6L Duramax. Cast covers can offer added benefits such as increased fluid capacity, integrated cooling fins, and additional strength over the steel factory cover. Choose between an OE-style stamped steel replacement cover or upgrade to a more durable cast and machined unit. Shop all the top manufacturers including Mag-Hytec, Dynatrac, ATS Diesel, BD-Power, PPE, AFE Power, Yukon, Banks Power, B&M, Nitro Gear & Axle, Dorman, and more!