2001 Meritor/Rockwell RT40-145, Truck Delivery, Rear Rears (Tandem Rear or Single), Fits to: Sterling L7500, (Used) 2001 Sterling L7500, REAR DIFFERENTIAL GEARS ONLY- Part Number: S11-22136-411, Serial Number: AVA00201287, Make: Meritor, Model: RT40-145, 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, Ratio 4.11, Serial# AVA00201287, Casting# AVA00201287 2FZHATAK61AH46644