5 0 Eaton DS463 Rear Axle Assembly for a 2001 Peterbilt 378 Contact for price (Used) 2001 Peterbilt 378, COMPLETE REAR REAR TANDEM- Make: Eaton, Model: DS463, Ratio: 3.90, Capacity: 20,000 Lbs, Hub Bolts: 10, Brake Type: Drum, For more information about this item,... ConditionUsedRear End3.90 ratioFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2001Stock NumberP-72221 MLS Number12630614CategoryAxle Assemblies, Rear Last Updated8/26/2025 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info