2 0 Paccar DX40 Front Differential for a 2023 Peterbilt 579 $3,195 USD DX40 / MV2014P 2.85 230K MILES, W/ PD, INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 2.85 ConditionUsedRear End2.85 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Stock Number22624-13 MLS Number12707346CategoryDifferentials, Front Last Updated9/23/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info