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Pinion Bearing Cup Installation

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Tools Required 

J-45228  Pinion Bearing Cup Remover and Installer

  1. Install the inner pinion bearing cup into the inner pinion bearing cup bore.
  2. Assemble the J-45228-1 (2), the J-45228-2 (3), and the J-45228-5 (1) into the pinion bearing cup bore as shown.
  3. Tighten the J-45228-5 (1) slowly to draw the inner pinion cup into the inner pinion bearing cup bore.

    Inspect the position of the inner pinion bearing cup as it is being drawn into the pinion bearing cup as bore to ensure the bearing cup is being pulled straight into the pinion bearing cup bore. If the pinion bearing cup is not being pulled straight into the bearing cup bore, remove the J-45228  and the pinion bearing cup and reposition the inner pinion bearing cup.

  4. Tighten the J-45228-5 (1) until the inner pinion bearing cup is seated in the inner pinion bearing cup bore.
  5. Remove the J-45228  .
    Fig 1: Assembling J-45228-1, J-45228-2 & J-45228-5 Into Pinion Bearing Cup Bore
    G01216459Courtesy of GENERAL MOTORS CORP.
  6. Install the outer pinion bearing cup into the outer pinion bearing cup bore.
  7. Assemble the J-45228-1 (3), the J-45228-2 (2), and the J-45228-5 (1) into the pinion bearing cup bore as shown.
  8. Tighten the J-45228-5 (1) slowly to draw the outer pinion cup into the outer pinion bearing cup bore.

    Inspect the position of the outer pinion bearing cup as it is being drawn into the pinion bearing cup bore to ensure the bearing cup is being pulled straight into the pinion bearing cup bore. If the pinion bearing cup is not being pulled straight into the bearing cup bore, remove the J-45228  and the pinion bearing cup and reposition the outer pinion bearing cup.

  9. Tighten the J-45228-5 until the outer pinion bearing cup is seated in the outer pinion bearing cup bore.
  10. Remove the J-45228  .
    Fig 2: Assembling J-45228-1, J-45228-2 & J-45228-5 Into Pinion Bearing Cup Bore
    G01216460Courtesy of GENERAL MOTORS CORP.
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