0 0 2014 Axle Alliance RS21.0-4 Rear Differential for a Freightliner M2 106 Newly Listed $908 USD (USED) Alliance Axle RS21.0-4 Ratio: 4.78 Side Gear Splines: 41 W/ Locker: NO Cast#: R6813511005 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)M2 106Stock Number25880497 MLS Number13884701CategoryDifferentials, Rear Last Updated10/15/2025 LocationKansas City, MO, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info