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Home >> Infiniti >> 2004 >> QX56 RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1211 (Rear Final Drive) >> Rear Final Drive Assembly >> Disassembly and Assembly >> Side Bearing Preload

Side Bearing Preload

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.
NOTE: A selection of carrier side bearing adjusting washers is required for completion of this procedure.
  1. All parts must be clean. The bearings must be well lubricated with light oil or DEXRONTM type automatic transmission fluid.
  2. Place the differential case assembly, with the side bearing outer races installed, into the gear carrier.
    Fig 1: Placing Differential Case Assembly With Side Bearing Outer Races Installed, Into Gear Carrier
    G02383487Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Insert the left and right side bearing adjusting washers in position between the side bearings and the gear carrier as shown.
    Fig 2: Inserting Left And Right Side Bearing Adjusting Washers In Position Between Side Bearings And Gear Carrier
    G02383488Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Install the side bearing caps in their original locations marked during disassembly, and tighten the bearing cap bolts to specification.
    1. Bearing cap bolts: 93 N.m (9.5 kg-m, 69 ft.-lb) 
  5. Turn the carrier several times to seat the bearings.
    Fig 3: Installing Side Bearing Caps In Original Locations And Tightening Bearing Cap Bolts
    G02383489Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Measure the turning force of the carrier at the drive gear retaining bolts using a suitable spring gauge.
    1. Drive gear bolt pulling force: 29.4 - 147 N (3 - 15 kg-f, 22 - 108 lb-f) 
    Fig 4: Measuring Turning Force Of Carrier At The Drive Gear Retaining Bolts Using Suitable Spring Gauge
    G02383490Courtesy of NISSAN MOTOR CO., U.S.A.
  7. If the turning force is not within the specification, adjust the turning force.
    • If the turning force is less than specification, install thicker washers.
    • If the turning force is greater than specification, install thinner washers.
    • Select the correct washer size to adjust the turning force. Refer to "SIDE BEARING ADJUSTING WASHERS ".
    Fig 5: Installing Thicker Washers
    G02383491Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Record the selected washer thickness required for the correct carrier side bearing preload.
  9. Remove the differential case assembly from the gear carrier using Tool. Save the selected side bearing adjusting washers for assembly.
    1. Tool number: HT72400000 ( - ) 
    Fig 6: Removing Differential Case Assembly From Gear Carrier Using Tool (HT72400000)
    G02383492Courtesy of NISSAN MOTOR CO., U.S.A.
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