2015 Meritor/Rockwell MT40-14X, Truck Tractor, Rear Rears (Tandem Rear or Single), Fits to: Mack CXU613, (Used) 2015 Mack CXU613, REAR DIFFERENTIAL GEARS ONLY- Make: Meritor, Model: MT4014X, Ratio: 2.64, Capacity: 20,000 Lbs, 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# TBD, Truck Year 2015 1M1AW02YXFM043820