(Used) 2006 International 7600, REAR DIFFERENTIAL GEARS ONLY- Part Number: 3506674C91, Serial Number: AVA05122641, Make: Meritor, Model: MT4014X, Ratio: 4.11, Capacity: 20,000 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