2003 Meritor/Rockwell Other, Truck Delivery, Rear Rears (Tandem Rear or Single), Fits to: Western Star 4900 FA, (Used) 2003 Western Star 4900 FA, COMPLETE REAR DIFFERENTIAL GEARS ONLY- Make: Meritor/Rockwell, Model: C14 3121V2024, Serial Number: AVH04024761, Ratio: 4.56, Hub Bolts: 10, Brake Type: Drum, Capacity: 20,000Lbs, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921, Ratio 4.56, Serial# AVH04024761, Truck Year 2003 5KKMAEAV73PL86609