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Universal Joint Maintenance: Lubrication

  1. Whenever drive shaft is removed or slip yoke sticks in extension housing seal, clean yoke with solvent. Lubricate inside diameter of seal with synthetic oil seal lubricant and outside diameter of seal with transmission fluid.
  2. Ball socket on double cardan joint requires periodic lubrication through provided fitting. Special Lubricant (1050679 ) is recommended by manufacturer. If lubrication fitting cannot be seen from beneath vehicle, double cardan joint may be lubricated from above using Adapter (J-25512-2 ) attached to end of a flex hose. See Fig 1.
    Fig 1: Lubricating Ball Socket Of Double Cardan Joint
    G90H04619Courtesy of GENERAL MOTORS CORP.
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