(Used) 2008 GMC C5500, DIFFERENTIAL HOUSING ONLY, Make: Spicer, Model: S130, Ratio: 4.30, Capacity: 15,000 Lbs, Part Number: 513606, Serial Number: HN02835849, For more information about this item, give us a call.We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921