4 0 2017 Spicer S170D-6.14 Rear Differential for a Peterbilt 320 Newly Listed $2,400 USD Spicer S170D 6.14 LOCKER Inspected Take Out +$500 Core, Take out from Low mileage non wrecked Truck, Ratio: 6.14, Yoke: 1710, Side Gear: 46 Splines, Input: 46 Splines, ConditionUsedRear End6.14 ratioFits To Make(s)PETERBILTFits To Model(s)320Stock Number16037 MLS Number14023185CategoryDifferentials, Rear Last Updated12/12/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info