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Home >> Infiniti >> 2018 >> Q70 5.6 Luxe, RWD >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Rear Final Drive (R200) (Except Hybrid) >> Rear Final Drive: R200 >> Unit Disassembly And Assembly >> Differential Assembly >> Assembly

Differential Assembly: Assembly

  1. Install circular clip to side gear.
    CAUTION: Never damage side gear.
  2. Install side gear thrust washers with the same thickness as the ones installed prior to disassembly or reinstall the old ones on the side gears.
    G04076276Courtesy of NISSAN NORTH AMERICA, INC.
  3. Install side gears and thrust washers into differential case.
    G04076277Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Make sure that the circular clip is installed to side gears.
  4. Align 2 pinion mate gears in diagonally opposite positions, then rotate and install them into differential case after installing thrust washer to pinion mate gear.
  5. Align the lock pin holes on differential case with shaft, and install pinion mate shaft.
    G04076278Courtesy of NISSAN NORTH AMERICA, INC.
  6. Measure side gear end play. If necessary, select the appropriate side gear thrust washers.
    1. Place differential case straight up so that side gear to be measured comes upward.
      G05729145Courtesy of NISSAN NORTH AMERICA, INC.
    2. Using feeler gauge, measure the clearance between side gear back and differential case at 3 different points, while rotating side gear. Average the 3 readings, and then measure the clearance of the other side as well.
      G04076257Courtesy of NISSAN NORTH AMERICA, INC.

      Side gear back clearance

      : Refer to Differential Side Gear Clearance .
      CAUTION: To prevent side gear from tilting, insert feeler gauges with the same thickness from both sides.
      • If the back clearance is outside the specification, use a thicker/thinner side gear thrust washer to adjust. For selecting thrust washer, refer to the latest parts information.

        When the back clearance is large:

        Use a thicker thrust washer.

        When the back clearance is small:

        Use a thinner thrust washer.
        CAUTION: Select a side gear thrust washer for right and left individually.
  7. Drive a lock pin into pinion mate shaft, using a punch.
    G04076247Courtesy of NISSAN NORTH AMERICA, INC.

    Make sure lock pin is flush with differential case.

    CAUTION: Never reuse lock pin.
  8. Apply thread locking sealant into the thread hole of drive gear.
    G04076281Courtesy of NISSAN NORTH AMERICA, INC.

    Use Genuine High Strength Thread Locking Sealant or equivalent. Refer to Recommended Chemical Products and Sealants .

    CAUTION: Clean and degrees drive gear back and threaded holes sufficiently.
  9. Install the drive gear to differential case.
    CAUTION: Align the matching mark of differential case and drive gear.
  10. Tighten the mounting bolts with the following procedure.
    G04076282Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Apply anti-corrosion oil to the thread and seat of mounting bolts.
    1. Tighten the bolts in a crisscross fashion to the specified torque.

      Drive Gear Mounting Bolts Tightening Torque

      : 78.5 N.m (8.0 kg-m, 58 ft-lb)
    2. Tighten the bolts additionally to the specified angle.

      Drive Gear Mounting Bolts Tightening Angle

      : 31 to 36 degree
      CAUTION: Check the tightening angle using the angle wrench [SST: KV10112100 (BT-8653-A)]. Never make judgment by visual inspection.
  11. Press side bearing inner races to differential case, using the drift (A) and the base (B).
    G04076407Courtesy of NISSAN NORTH AMERICA, INC.

    A

    : Puller [SST: KV38100300 (J-25523)]

    B

    : Base [SST: ST33061000 (J-8107-2)]
    CAUTION: Never reuse side bearing inner race.
  12. Set bearing outer races to differential case assembly, and install it with removed side bearing adjusting washer or same thickness washer into gear carrier.
    G04076362Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Apply differential gear oil to the side bearings.
    • Install side bearing and side bearing adjusting washer in correct location. (drive gear tooth side or drive gear back side)
  13. Measure side bearing preload. If necessary, select the appropriate side bearing adjusting washers. Refer to Adjustment .
  14. Align matching marks on bearing cap with that on gear carrier.
    G04076359Courtesy of NISSAN NORTH AMERICA, INC.
  15. Install bearing caps and tighten bearing cap mounting bolts.
  16. Using the drift (A) [SST: ST35271000 (J-26091)], drive side oil seals until it becomes flush with the case end.
    GNSJPDID0287Z-287Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Never reuse oil seal.
    • When installing, never incline oil seal.
    • Apply multi-purpose grease onto oil seal lips, and gear oil onto the circumference of oil seal.
  17. Check and adjust drive gear runout, tooth contact, drive gear to drive pinion backlash, and total preload torque. Refer to Adjustment .

    Recheck above items. Readjust the above description, if necessary.

  18. Apply sealant (A) to mating surface of rear cover.
    GNSJPDID0288Z-288Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Remove old sealant from mounting surfaces. Also remove any moisture, oil, or foreign material from application and mounting surfaces.
  19. Install rear cover on gear carrier and tighten mounting bolts.
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