8 0 Dana P22060 Rear Axle Assembly for a 2015 Peterbilt 337 Contact for price (Used) 2015 Peterbilt 337, COMPLETE REAR DIFFERENTIAL- Part Number: 21554, Serial Number: U142377438, Make: Spicer, Model: P22060S, Ratio: 5.57, Capacity: 21,000 Lbs, Hub Bolts: 10, Brake... ConditionUsedRear End5.57 ratioFits To Make(s)PeterbiltFits To Model(s)337Will Fit Year(s)2015Part Number21554Stock NumberP-103933 MLS Number13633819CategoryAxle Assemblies, Rear Last Updated9/30/2025 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info