View 0 Photos View 0 Videos 2016 Spicer S190D Rear Differential for a Peterbilt 579 Newly Listed $450 USD (USED) Spicer S190D Ratio: 2.69 Side Gear Splines: 46 W/ Locker: YES Cast#: - ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number26020137 MLS Number14442595CategoryDifferentials, Rear Last Updated6/21/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info