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Installation Of Differential Case Assembly

WARNING: This page is about a different car, the 2004 Infiniti FX45 and 2004 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
  1. Select side bearing adjusting washer.

    Refer to SIDE BEARING ADJUSTING WASHERS .

  2. Install differential case assembly with side bearing outer races into gear carrier.
    Fig 1: Installing Differential Case Assembly
    G00725636Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Insert original left and right side bearing adjusting washers in place between side bearings and carrier.
    Fig 2: Inserting Original Left & Right Side Bearing
    G00725637Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Align matching mark on bearing cap with that on gear carrier.
  5. Install the side bearing cap.
    Fig 3: Aligning Matching Mark On Bearing Cap
    G00725638Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Install side oil seal. Refer to REMOVAL AND INSTALLATION .
    1. Tool number : KV38100200 (J-26233) 
  7. Measure drive gear-to-drive pinion backlash with a dial gauge at several point.
    1. Drive gear to drive pinion backlash 
      1. : 0.10 - 0.15 mm (0.0039 - 0.0059 in) 
        2. Fig 4: Measuring Drive Gear-To-Drive Pinion Backlash
        G00725639Courtesy of NISSAN MOTOR CO., U.S.A.
    • It backlash is too small, adjustment of washer thickness is required. Decrease thickness of left shim and increase thickness of right by the same amount.

      If backlash is too great, reverse the above procedure.

    • Never change the total amount of washers as it will change the bearing preload.
  8. Check total preload with tool.
    1. Tool number : ST3127S000 (J-25765-A) 
      Fig 5: Checking Total Preload
      G00725640Courtesy of NISSAN MOTOR CO., U.S.A.

    When checking preload, turn drive pinion in both directions several times to seat bearing rollers correctly.

    1. Total preload : 2.84 - 3.75 N.m (0.29 - 0.38 kg-m, 26 - 33 in-lb) 
    • If preload is too great, remove the same amount of washer to each side.
    • If preload is too small, add the same amount of washer to each side.

    Never add or remove a different number of washers for each side. Difference in number of washers will change drive gear to drive pinion backlash.

  9. Recheck drive gear to drive pinion backlash. Increase or decrease in thickness of shims will cause change to drive gear to pinion backlash.
    • Check whether the backlash varies excessively in different places. Foreign matter may be caught between the drive gear and the differential case causing the trouble.
    • The backlash can vary greatly even when the drive gear runout is within a specified range. In that case, replace the hypoid gear set or differential case.
  10. Check runout of drive gear with a dial gauge.
    1. Drive gear runout limit : 0.05 mm (0.0020 in) 
  11. Check tooth contact.

    Refer to TOOTH CONTACT .

    Fig 6: Checking Runout Of Drive Gear
    G00725641Courtesy of NISSAN MOTOR CO., U.S.A.
  12. Install rear cover. Apply liquid sealant to rear cover side and install gear carrier.
    Fig 7: Applying Liquid Sealant To Rear Cover
    G00725642Courtesy of NISSAN MOTOR CO., U.S.A.
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