0 0 Eaton DSP40 Rear Differential for a 2015 Peterbilt 579 Contact for price DOUBLE LOCKS, 3.55 RATIO, 40,000LBS,, Ratio: 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2015Stock Number2826-PETE-4 MLS Number13341554CategoryDifferentials, Rear Last Updated3/7/2025 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info