2006 Meritor/Rockwell RS21-145, Truck Delivery, Rear Rears (Tandem Rear or Single), Fits to: Freightliner M2 106, (Used) 2006 Freightliner M2 106, COMPLETE DIFFERENTIAL GEARS ONLY- Part Number: C11-00016-006, Make: Meritor/Rockwell, Model: RS21-145, Ratio: 5.57, 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, Ratio 5.57, Serial# TBD, Casting# TBD 1FVACWDC66HW81010