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Installation Of Differential Case Assembly

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. Select the side bearing adjusting washer. Refer to "SIDE BEARING PRELOAD ".
  2. Install the differential case assembly with side bearing outer races into the gear carrier.
    Fig 1: Installing Differential Case Assembly With Side Bearing Outer Races Into Gear Carrier
    G02383505Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Insert the left and right side bearing adjusting washers into place between the side bearings and the gear carrier.
    Fig 2: Inserting Left And Right Side Bearing Adjusting Washers Into Place Between Side Bearings And Gear Carrier
    G02383506Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Install the side bearing caps. Align the matching mark on the bearing cap with the matching mark on the gear carrier, and tighten the bearing cap bolts to specification.
    1. Bearing cap bolts: 93 N.m (9.5 kg-m, 69 ft-lb) 
  5. Install the side oil seals. Refer to "REMOVAL AND INSTALLATION ".
    Fig 3: Aligning Matching Mark On The Bearing Cap With Matching Mark On The Gear Carrier
    G02383507Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Measure the drive gear-to-drive pinion backlash with a dial indicator at several points.
    1. Drive gear to drive pinion backlash: 0.13 - 0.18 mm (0.0051 - 0.0070 in) 
    Fig 4: Measuring Drive Gear-To-Drive Pinion Backlash With Dial Indicator
    G02383508Courtesy of NISSAN MOTOR CO., U.S.A.
    • If the backlash is less than specification, adjust the washer thickness. Decrease the thickness of the left washer and increase the thickness of the right washer by the same amount.
    • If the backlash is greater than specification, adjust the washer thickness. Increase the thickness of the left washer and decrease the thickness of the right washer by the same amount.
    • Never change the total amount of the washers as it will change the bearing preload.
  7. Check the total preload using Tool.
    1. Tool number: ST3127S000 (J-25765-A) 

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

    Fig 5: Checking The Total Preload Using Tool (ST3127S000)
    G02383509Courtesy of NISSAN MOTOR CO., U.S.A.
    1. Total preload: 2.05 - 4.11 N.m (0.21 - 0.42 kg-m, 19 - 36 in-lb) 
    • If the preload is greater than specification, remove the same amount of washer thickness from each side.
    • If the preload is less than specification, add the same amount of washer thickness to each side.
    • Never add or remove a different amount of washer thickness from each side. A difference in the amount of washer thickness will change the drive gear-to-drive pinion backlash.
  8. Recheck the drive gear-to-drive pinion backlash. Increase or decrease in thickness of the washers will change the drive gear-to-drive 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 variation in backlash.
    • The backlash can vary greatly even when the drive gear runout is within specification. To correct this variation, replace the hypoid gear set or differential case.
  9. Check runout of drive gear using a dial indicator.
    1. Runout limit: 0.05 mm (0.0020 in) or less 
  10. Check the tooth contact.

    Refer to "TOOTH CONTACT ".

    Fig 6: Checking Runout Of Drive Gear Using A Dial Indicator
    G02383510Courtesy of NISSAN MOTOR CO., U.S.A.
  11. Install the rear cover on the gear carrier. Apply Genuine NISSAN RTV Sealant or equivalent, to the rear cover as shown. Refer to "RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS ".
    1. Rear cover bolts: 44 N.m (4.5 kg-m, 32 ft-lb) 
    Fig 7: Applying Genuine NISSAN RTV Sealant Or Equivalent To Rear Cover
    G02383511Courtesy of NISSAN MOTOR CO., U.S.A.
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