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Differential Case Assembly Assemble

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required 

  1. Install the thrust washers and the differential side gears into the differential case.

    If the same differential side gears and the thrust washers are being used, install the gears and the washers to the original locations.

  2. Install the differential pinion gears.
    1. Position 1 pinion gear between the differential side gears.
    2. Rotate the differential side gears until the pinion gear is directly opposite the opening in the differential case.
    3. Place the other pinion gear between the differential side gears.

      Line up the hole in both pinion gears.

    Fig 1: Installing Thrust Washers And Differential Side Gears Into Differential Case
    G01468046Courtesy of GENERAL MOTORS CORP.
  3. Install the thrust washers.

    Rotate the pinion gears toward the opening in order to permit the sliding in of the thrust washers.

  4. Install the pinion gear shaft.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  5. Install the pinion gear shaft lock bolt.

    Tighten 

    Tighten the pinion shaft lock bolt to 33 N.m (24 lb ft).

    Important:  The mating surface of the ring gear and the differential case must be clean and free of burrs before installing the ring gear.

  6. Install the ring gear onto the differential case.

    Important:  The ring gear bolts have left-hand threads

  7. Install the new ring gear bolts.

    Hand start each bolt to ensure that the ring gear is properly installed to the differential case.

  8. Tighten the new ring gear bolts. Tighten the ring gear bolts alternately and in stages, gradually pulling the ring gear onto the differential case.

    Tighten 

    Tighten the ring gear bolts in sequence to 80 N.m (59 lb ft).

    Fig 2: Installing New Ring Gear Bolts
    G01468050Courtesy of GENERAL MOTORS CORP.
  9. Install the differential case bearings using the J 8092  (1) and the J 33790  (2).
    Fig 3: Installing Differential Case Bearings
    G01468051Courtesy of GENERAL MOTORS CORP.