2006 Meritor/Rockwell RT40-145, Truck Delivery, Axle Housings (Rear), Fits to: Sterling L9500, (Used) 2006 Sterling L9500, FRONT DIFFERENTIAL HOUSING ONLY- Part Number: S11-22185-390, Serial Number: AVA05124270, Make: Meritor, Model: RT40-145, Ratio: 3.90, 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, Serial# AVA05124270, Casting# AVA05124270, Hub Bolts 10 2FZHAZDE26AV58426