View 10 Photos View 0 Videos Dana-Spicer Differential Case $600 USD Good used Spicer differential, Rear (or only) gear case assembly from an unknown truck. Customer Part number is 20559855. The Spicer part number is 23105S and the Serial number is HN01433921... ConditionUsedPart NumberP-9751Stock NumberP-9751 MLS Number11165339CategoryDifferential Cases Last Updated12/18/2023 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info