0 0 2017 Eaton RDP41 Rear Differential for a Peterbilt 579 Recently Updated $1,534 USD (USED) Eaton RDP41 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: YES Cast#: NA ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25848265 MLS Number13972879CategoryDifferentials, Rear Last Updated11/19/2025 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info