This differential spider is built for Mack CRDP 95 and CRD 96 differentials, fitting inside the case to hold the pinion gears that mesh with the side gears. It allows wheel speed to vary between axle shafts during turns and is sold individually.Interchanges:Mack 25101049Mack 32KH340BSD-0779FeaturesDifferential spiderFits Mack CRDP 95 differentialFits Mack CRD 96 differentialSold pack quantity: 1 eachTech SpecsFitment: Mack CRDP 95 DifferentialFitment: Mack CRD 96 DifferentialSell pack: 1 EachUsed in this Mack modelCRDP 95 / CRD 96 Differential