(Used) 2006 International 4300, DIFFERENTIAL HOUSING ONLY- Part Number: 510917, Serial Number: HN01769884, Make: Spicer, Model: 21060S, Ratio: 6.17, Capacity: 22,000 lbs, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921