The Meritor MPS513 is a genuine Meritor spacer kit designed for use in Meritor and Rockwell differential rebuilds. Spacer kits like the MPS513 are precision components used during differential assembly to establish correct bearing preload and gear spacing. If you are sourcing rebuild parts for a Meritor or Rockwell differential, the MPS513 is the OEM-specified spacer kit for the application. Pro Gear and Transmission carries genuine Meritor differential parts. Not sure this is the right kit for your differential? Give us a call to confirm proper fit before ordering.FeaturesGenuine Meritor part number MPS513Designed for Meritor and Rockwell differential applicationsUsed to establish correct bearing preload and gear spacing during differential assemblyOEM-specified spacer kit for differential rebuild proceduresSold by Pro Gear and Transmission