This drive axle fits Mack differential applications and is sold as a single unit, built as a replacement for the listed OEM number. It carries torque from the differential out to the wheels, turning the driveline’s rotational power into the force that moves the truck. Shops and fleets servicing Mack driveline setups can use it in place of the original axle.Interchanges:Mack 68KH3231P2BSH-5523FeaturesDrive AxlePart of the Differential product groupSold pack: 1 eachTech SpecsProduct Group: DifferentialSell Pack: 1 Each