(Used) 2001 International 4900, COMPLETE REAR DIFFERENTIAL- Make: Meritor, Model: RS23-160, Ratio: 4.56, Capacity: 23,000 Lbs, Hub Bolts: 10, Brake Type: Drum, Part Number: RS23160NFN1030456, Serial Number: AVA00262028, For more information about this item, give us a call.We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921