6 0 2018 Spicer S21-170 Rear Differential for a Kenworth T3 Series $2,250 USD 5.25 ratio, Rear differential drop-in pulled from a 2018 Kenworth T370 run for just 6,867 miles, non-wrecked. Spicer S21-170 model axle with 5.25 ratio. Customer part number... ConditionUsedFits To Make(s)KENWORTHFits To Model(s)T3 SeriesStock Number5626 MLS Number12301424CategoryDifferentials, Rear Last Updated9/4/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info