0 0 2017 Meritor RR20145 Rear Differential for a Peterbilt 579 $295 USD (USED) Meritor RR20145 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200L1884 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25776819 MLS Number13740167CategoryDifferentials, Rear Last Updated8/4/2025 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info