(Used) 2001 Sterling L7500, COMPLETE REAR REAR TANDEM- Part Number: S11-22136-411, Serial Number: AVA00201287, Make: Meritor, Model: RT40-145, Ratio: 4.11, Capacity: 20,000 Lbs, Hub Bolts: 10, Brake Type: 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