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Home >> Infiniti >> 2003 >> FX45 >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Front Final Drive >> Front Final Drive Assembly >> Differential Case Assembly
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Differential Case Assembly

  1. Apply gear oil to contact surfaces of each gear, thrust washers and differential case.
  2. Install the removed thrust washer or same thickness washer to side gear.
    Fig 1: Identifying Thrust Washers And Differential Case
    G03106559Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Install the side gear, thrust washers, pinion mate gears and thrust washers to differential case.
    CAUTION: Install the circlip equipped side gear to the side retainer side.
  4. Install pinion mate gears by placing the pair of gear facing each other, and turning them.
    Fig 2: Installing Pinion Mate Gears By Placing Pair Of Gear Facing Each Other
    G03106560Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Install the pinion mate shaft while aligning the lock pin holes between the differential case and pinion mate shaft.
    Fig 3: Installing Pinion Mate Shaft
    G03106561Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Place the differential gear case so that measurement point facing up as shown.
    Fig 4: Identifying Centre Line Of Differential
    G03106562Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Use two feeler gauges to prevent leaning of side gear as shown.
  8. Measure the clearance at 3 points by turning the side gear.
  9. Select side gear thrust washer so that the clearance is within standard.

    Rear face of side gear and differential case clearance: 0.20 mm (0.0079 in) or less 

    CAUTION: Check the smooth gear movement.
    Fig 5: Identifying Feeler Gauges In Differential
    G03106563Courtesy of NISSAN MOTOR CO., U.S.A.
  10. Place the differential gear case upside down, and measure the opposite side clearance.
    Fig 6: Placing Differential Gear Case Upside Down
    G03106564Courtesy of NISSAN MOTOR CO., U.S.A.
  11. If clearance exceed limit, adjust the clearance by selecting adjusting shim.
    • If clearance too large, increase thrust washer thickness.
    • If clearance too small, decrease thrust washer thickness.
  12. Drive the lock pin into the pinion mate shaft using punch.

    Tool number: KV31100300 (-) 

    CAUTION: Do not reuse the lock pin. Always replace the with a new one.
    Fig 7: Driving Lock Pin Into Pinion Mate Shaft Using Punch
    G03106565Courtesy of NISSAN MOTOR CO., U.S.A.
  13. Apply genuine medium strength locking agent or equivalent to the drive gear bolt hole thread.
    Fig 8: Applying Genuine Medium Strength Locking Agent Or Equivalent To Drive Gear Bolt Hole Thread
    G03106566Courtesy of NISSAN MOTOR CO., U.S.A.
  14. Assemble the drive gear and differential case.
  15. Apply oil to the mounting bolt seating surface, tighten the bolt in crisscross pattern to specified torque. Refer to COMPONENTS  .
    Fig 9: Tightening Bolt In Crisscross Pattern To Specified Torque
    G03106567Courtesy of NISSAN MOTOR CO., U.S.A.
  16. Press-fit side bearing inner race on differential case with tool.

    Tool number A: ST33230000 (-) 

    B: ST35321000 (-) 

    Fig 10: Pressing-Fit Side Bearing Inner Race On Differential Case With Tool
    G03106568Courtesy of NISSAN MOTOR CO., U.S.A.
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