(Used) 2005 Freightliner M2 106, REAR REAR- Make: Alliance Axle, Model: ARS-23.0-4, Serial Number: 742821-A001654, Ratio: 3.91, Hub Bolts: 10, Brake Type: Air, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921