1955 Oldsmobile Deluxe 88 Transmission Seals & Gaskets
- National®Automatic Transmission Extension Housing SealOldsmobile Deluxe 88 Transmission with 3-Speed GMC Jetaway 315 Transmission 1955, Automatic Transmission Extension Housing Seal by National®. Width: 0.582". Inside Diameter: 1.687". Outside Diameter: 2.506". Housing Bore: 2.502"....Designed to increase wheel-end reliability by effectively excluding dirt, moisture, and other contaminantsA patent-pending National Dynamic Edge technology allows for maximum protection$8.26