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Installation Of Differential Case Assembly

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.
  1. Select side bearing adjusting washer.

    Refer to AVAILABLE PINION HEIGHT ADJUSTING WASHERS .

  2. Install differential case assembly with side bearing outer races into gear carrier.
  3. Insert left and right side bearing adjusting washers in place between side bearings and carrier.
    Fig 1: Installing Bearing Adjusting Washers
    G00750135Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Align mark on bearing cap with that on gear carrier.
  5. Install the bearing cap, tighten the bolt to the specified torque. Refer to COMPONENTS .
    Fig 2: Aligning Matching Marks
    G00750136Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Install side oil seal. Refer to SIDE OIL SEAL .
    1. Tool number : KV38100200 (J26233) 
    Fig 3: Installing Side Oil Seal
    G00750137Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Measure drive gear to drive pinion backlash with a dial indicator at several point.
    1. Drive gear to drive pinion backlash : 0.10 - 1.15 mm (0.0069 - 0.0059 in) or less 
    Fig 4: Checking Backlash
    G00750138Courtesy 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 (See J25765-A) 
    Fig 5: Checking Preload
    G00750139Courtesy 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 indicator.
    1. Runout limit : 0.05 mm (0.0020 in) or less 
  11. Check tooth contact.

    Refer to TOOTH CONTACT .

    Fig 6: Checking Runout Of Drive Gear
    G00750140Courtesy of NISSAN MOTOR CO., U.S.A.
  12. Install rear cover. Apply liquid sealant to rear cover side and install gear carrier.
    Fig 7: Installing Rear Cover
    G00750141Courtesy of NISSAN MOTOR CO., U.S.A.
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