View 6 Photos View 0 Videos Dana D40-155H Rear Axle Assembly for a 2020 Peterbilt 579 Newly Listed Contact for price (Used) 2020 Peterbilt 579, COMPLETE REAR REAR TANDEM- Part Number: 10032384, Serial Number: HN07787569, Make: Spicer, Model: D40-155H, Ratio: 2.79, Capacity: 19,000 Lbs, Hub Bolts: 10, Brake... ConditionUsedRear End2.79 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2020Part Number10032384Stock NumberP-504231 MLS Number14427199CategoryAxle Assemblies, Rear Last Updated6/14/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info