(Used) 2016 Freightliner M2 106, COMPLETE REAR AXLE- Make: Detroit, Model: R21-4N, Capacity: 21,000 Lbs, Ratio: 5.56, Hub Bolts: 10, Brake Type: Drum, Serial Number: 742821A110903, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS ) 929 W PULASKI HWY ELKTON, MD 21921