(Used) 2000 Sterling L9522, FRONT DIFFERENTIAL HOUSING ONLY- Part Number: S11-21471-463, Serial Number: AVA99266261, Make: Meritor, Model: RT44-145, Ratio: 4.63, 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