2 0 2015 Spicer S23-190 Rear Differential for a Peterbilt 579 $375 USD (USED) Spicer S23-190 Ratio: 2.53 Side Gear Splines: 46 W/ Locker: NO Cast#: - ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25579302 MLS Number12743486CategoryDifferentials, Rear Last Updated7/26/2024 LocationKansas City, MO, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info