View 0 Photos View 0 Videos 2021 Spicer S20-140 Rear Axle Assembly for a Peterbilt 337 Recently Updated $4,000 USD COMPLETE CUT OFF PETERBILT AIR TRACK RATIO 4.56 WITH LOCKER LIKE NEW ONLY 16K MILES ON TRUCK ConditionUsedFits To Make(s)PETERBILTFits To Model(s)337Stock Number10570 MLS Number12876510CategoryAxle Assemblies, Rear Last Updated9/5/2026 LocationMorrisville, NY, US Sold ByDutcher's Inc. (844) 641-___ SHOWNUMBERCall Seller Save More Info