2015 Freightliner, Cascadia 125, Axle Assemblies, Rear, Stock #0355FL 2015 Freightliner Cascadia 125 Midroof Sleeper Used, Meritor-Rockwell Differential OEM Part #: MT4014X Serial#: Pending* Ratio: 3.70 Casting#: 4719-2750-2546-06