6 0 1996 Eaton RS403 Rear Differential for a Peterbilt 320 Newly Listed $650 USD RS403 - 4.33 Ratio - Pullout - Grade A - Unit In Good Condition. ConditionUsedRear End4.33 ratioFits To Make(s)PeterbiltFits To Model(s)320Stock Number1603-16 MLS Number13897064CategoryDifferentials, Rear Last Updated10/16/2025 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info