2016 Meritor/Rockwell Other, Truck Tractor, Rear Rears (Tandem Rear or Single), Fits to: Mack CXU613, (Used) 2016 Mack CXU613, COMPLETE REAR DIFFERENTIAL GEARS ONLY- Part Number: MT4014X4CFRNN2, 264, Serial Number: FOR03144049, Make: Meritor/Rockwell, Model: MR2014X4MFRNN2 264, Capacity: 20,000 Lbs, Ratio: 2.64, 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 2.64, Serial# FOR03144049, Casting# FOR03144049 1M1AW21Y5GM056537