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National 8705S Wheel Seal - Front InnerOE Quality 60-Day Returns
Part #: 8705S

National 8705S Wheel Seal - Front Inner

Front Inner
114 vehicles fit this part
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Fitment: Buick, Chevrolet, Oldsmobile, Pontiac, and GMC, Skyhawk, Monza, Starfire, Sunbird, Vega, Astre, Apollo, Nova, Omega, Ventura, GS, GS 455, Skylark, Sportwagon, Chevelle, El Camino, Monte Carlo, Sprint, Cutlass, Cutlass Supreme, F85, Vista Cruiser, Grand Prix, GTO, LeMans, 442, Acadian, G10 Van, G15/G1500 Van, Tempest, GS 350, GS 400, Special, Camaro, Corvair, Beaumont, Firebird, Chevy II, Gran Sport, Bel Air, Biscayne, Caprice, Impala, Malibu, Laurentian, Parisienne, Jetstar 88, and Jetstar I
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Overview of National 8705S Wheel Seal for Classic GM Vehicles

The National 8705S wheel seal is engineered to provide reliable sealing performance for a range of Buick, Chevrolet, Oldsmobile, and Pontiac models. Designed with precision dimensions and durable nitrile material, this oil seal helps maintain driveline integrity and prevent leaks in your vehicle's axle assembly.

  • Inside diameter: 1.734 inches (44.040 mm)
  • Outside diameter: 2.405 inches (61.090 mm)
  • Housing bore diameter: 2.400 inches (60.960 mm)
  • Width: 0.230 inches (5.840 mm)
  • Material: Nitrile rubber for oil resistance and durability
  • Type: 277 series oil seal

Detailed Product Description and Specifications

The National 8705S wheel seal is part of the 8000 series and is specifically designed to fit shafts with a diameter of 1.734 inches (44.040 mm). Constructed from nitrile, a synthetic rubber known for its resistance to oil and wear, this seal ensures a tight fit within the housing bore of 2.400 inches (60.960 mm). The outside diameter of 2.405 inches (61.090 mm) and width of 0.230 inches (5.840 mm) provide a secure barrier against contaminants and fluid leaks. This oil seal is compatible with various classic and late-model vehicles including the Buick Skylark, Chevrolet Camaro, Oldsmobile Cutlass Supreme, and Pontiac Firebird, among others.

Compatible Vehicles and Applications

This wheel seal is compatible with multiple makes and models, including:

  • Buick Skylark, Riviera, and LeMans
  • Chevrolet Camaro, Impala, Malibu, Monte Carlo, Nova, and El Camino
  • Oldsmobile Cutlass, Cutlass Supreme, and 442
  • Pontiac Firebird, GTO, Grand Prix, and Tempest

It is designed to maintain axle and driveline sealing integrity, preventing oil leaks and contamination in these vehicles' wheel hubs and axle assemblies.

Common Issues Addressed by the National 8705S Wheel Seal

  • Prevents oil leaks from axle shafts
  • Protects wheel bearings from dirt and moisture intrusion
  • Reduces premature wear of driveline components
  • Maintains proper lubrication within the axle housing
  • Helps avoid costly repairs due to seal failure

Installation Notes and Tips

  • Ensure the shaft and housing bore are clean and free of debris before installation
  • Use appropriate tools to press the seal evenly into the housing bore without damage
  • Verify the seal lip is properly oriented toward the lubricant side
  • Check shaft diameter to confirm compatibility with the 1.734 inch (44.040 mm) specification
  • Inspect the seal after installation for proper seating and no visible gaps

Quality Assurance and Warranty Information

National wheel seals are manufactured to meet industry standards for durability and performance. The 8705S seal is made from high-quality nitrile material to resist oil degradation and maintain sealing effectiveness over time. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects, ensuring confidence in the product's reliability for your Buick, Chevrolet, Oldsmobile, or Pontiac vehicle.

BrandNational
Part Number8705S
Housing Bore (Inch)2.400
Housing Bore (MM)60.960
Inside Diameter1.734
Inside Diameter44.040
MaterialNitrile
Outside Diameter2.405
Outside Diameter61.090
Outside Diameter (Inch)2.405
Outside Diameter (mm)61.090
Part DescriptionOil Seal
Series8000
Shaft (Inch)1.734
Shaft (MM)44.040
Type277
Unit of DimensionInch
Width (Inch)0.230
Width (mm)5.840

This part fits 114 vehicles. Search below:

YearMakeModelPositionNotes
1980BuickSkyhawkFront Inner
1980ChevroletMonzaFront Inner
1980OldsmobileStarfireFront Inner
1980PontiacSunbirdFront Inner
1979BuickSkyhawkFront Inner
1979ChevroletMonzaFront Inner
1979OldsmobileStarfireFront Inner
1979PontiacSunbirdFront Inner
1978BuickSkyhawkFront Inner
1978ChevroletMonzaFront Inner
1978OldsmobileStarfireFront Inner
1978PontiacSunbirdFront Inner
1977BuickSkyhawkFront Inner
1977ChevroletMonzaFront Inner
1977OldsmobileStarfireFront Inner
1977PontiacSunbirdFront Inner
1976BuickSkyhawkFront Inner
1976ChevroletMonzaFront Inner
1976OldsmobileStarfireFront Inner
1976PontiacSunbirdFront Inner
1975BuickSkyhawkFront Inner
1975ChevroletMonzaFront Inner
1975OldsmobileStarfireFront Inner
1974ChevroletNovaFront Inner
1974OldsmobileOmegaFront Inner
1973ChevroletNovaFront Inner
1973OldsmobileOmegaFront Inner
1972BuickSkylarkFront Inner
1972ChevroletEl CaminoFront Inner
1972ChevroletMonte CarloFront Inner
1972ChevroletNovaFront Inner
1972OldsmobileCutlassFront Inner
1972OldsmobileCutlass SupremeFront Inner
1972PontiacGrand PrixFront Inner
1972PontiacGTOFront Inner
1972PontiacLeMansFront Inner
1971BuickSkylarkFront Inner
1971ChevroletEl CaminoFront Inner
1971ChevroletMonte CarloFront Inner
1971ChevroletNovaFront Inner
1971OldsmobileCutlassFront Inner
1971OldsmobileCutlass SupremeFront Inner
1971PontiacAcadianFront Inner
1971PontiacGrand PrixFront Inner
1971PontiacGTOFront Inner
1971PontiacLeMansFront Inner
1970BuickSkylarkFront Inner
1970ChevroletEl CaminoFront Inner
1970ChevroletMonte CarloFront Inner
1970ChevroletNovaFront Inner
1970GMCG15/G1500 VanFront Inner
1970OldsmobileCutlassFront Inner
1970OldsmobileCutlass SupremeFront Inner
1970PontiacAcadianFront Inner
1970PontiacGrand PrixFront Inner
1970PontiacGTOFront Inner
1970PontiacLeMansFront Inner
1970PontiacTempestFront Inner
1969BuickSkylarkFront Inner
1969ChevroletCamaroFront Inner
1969ChevroletEl CaminoFront Inner
1969ChevroletNovaFront Inner
1969GMCG15/G1500 VanFront Inner
1969OldsmobileCutlassFront Inner
1969OldsmobileCutlass SupremeFront Inner
1969PontiacAcadianFront Inner
1969PontiacFirebirdFront Inner
1969PontiacGrand PrixFront Inner
1969PontiacGTOFront Inner
1969PontiacLeMansFront Inner
1969PontiacTempestFront Inner
1968BuickSkylarkFront Inner
1968ChevroletCamaroFront Inner
1968ChevroletEl CaminoFront Inner
1968GMCG15/G1500 VanFront Inner
1968OldsmobileCutlassFront InnerCompatible with vehicles equipped with disc brakes.
1968OldsmobileCutlass SupremeFront InnerCompatible with vehicles equipped with disc brakes.
1968PontiacAcadianFront Inner
1968PontiacFirebirdFront Inner
1968PontiacGTOFront Inner
1968PontiacLeMansFront Inner
1968PontiacTempestFront Inner
1967BuickSkylarkFront Inner
1967ChevroletBel AirFront InnerCompatible with vehicles equipped with disc brakes.
1967ChevroletCamaroFront Inner
1967ChevroletCapriceFront InnerCompatible with vehicles equipped with disc brakes.
1967ChevroletEl CaminoFront Inner
1967ChevroletImpalaFront InnerCompatible with vehicles equipped with disc brakes.
1967ChevroletMalibuFront Inner
1967GMCG15/G1500 VanFront Inner
1967OldsmobileCutlassFront InnerCompatible with vehicles equipped with disc brakes.
1967OldsmobileCutlass SupremeFront InnerCompatible with vehicles equipped with disc brakes.
1967PontiacAcadianFront Inner
1967PontiacFirebirdFront InnerCompatible with vehicles equipped with disc brakes.
1967PontiacGTOFront InnerCompatible with vehicles equipped with disc brakes.
1967PontiacLaurentianFront InnerCompatible with vehicles equipped with disc brakes.
1967PontiacLeMansFront InnerCompatible with vehicles equipped with disc brakes.
1967PontiacParisienneFront InnerCompatible with vehicles equipped with disc brakes.
1967PontiacTempestFront InnerCompatible with vehicles equipped with disc brakes.
1966BuickSkylarkFront Inner
1966ChevroletEl CaminoFront Inner
1966ChevroletMalibuFront Inner
1966OldsmobileCutlassFront InnerCompatible with vehicles equipped with disc brakes.
1966PontiacAcadianFront Inner
1965BuickSkylarkFront Inner
1965ChevroletEl CaminoFront Inner
1965ChevroletMalibuFront Inner
1965OldsmobileCutlassFront InnerCompatible with vehicles equipped with disc brakes.
1965PontiacAcadianFront Inner
1964BuickSkylarkFront Inner
1964ChevroletEl CaminoFront Inner
1964ChevroletMalibuFront Inner
1964OldsmobileCutlassFront InnerCompatible with vehicles equipped with disc brakes.
1964PontiacAcadianFront Inner

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

0704-673317187262038726204042620408290-25629079290902909238375603876191403899404116417.620024643952-21-021652-21-02248705S9788739GS1003T1613T3883T3946

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.