2000 Meritor/Rockwell RR20-145, Truck Delivery, Rear Rears (Tandem Rear or Single), Fits to: Sterling L8500, (Used) 2000 Sterling L8500, COMPLETE REAR DIFFERENTIAL GEARS ONLY- Part Number: S11-22069411, Serial Number: AVA99297825, Make: Meritor/Rockwell, Model: RR20145NFN2899, Ratio: 4.11, Capacity: 20,000 Lbs, Hub Bolts: 10, Brake Type: Air Drum, 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# AVA99297825, Casting# AVA99297825 2FZXBJCB4YAF59813