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Home >> Infiniti >> 2021 >> Q50 Signature Edition, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Transfer Case (Service Information)) >> Disassembly And Assembly >> Rear Final Drive >> Rear Final Drive Differential Assembly >> REAR FINAL DRIVE DIFFERENTIAL ASSEMBLY : Disassembly & Assembly >> Assembly

REAR FINAL DRIVE DIFFERENTIAL ASSEMBLY : Disassembly & Assembly: Assembly

WARNING: This page is about a different variant/trim than selected.
  1. Apply thread locking sealant into the thread hole of drive gear.
    G04076281Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Clean and degrees drive gear back and threaded holes sufficiently.
  2. Install the drive gear to differential assembly.
    CAUTION: Align the matching mark of differential assembly and drive gear.
  3. 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 Nm (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.
  4. Press side bearing inner races to differential assembly, using the drift (A) and the adaptor (B).
    GNSJSDIA2567Z-567Courtesy of NISSAN NORTH AMERICA, INC.

    A

    : Drift [SST: KV38100200 (J-26233)]

    B

    : Adaptor [SST: KV40104920 (--)]

    CAUTION: Never reuse side bearing inner race.
  5. Set the drifts (A and B) to the right and left side bearing adjusting washers individually. Compress differential assembly and side bearing to install differential assembly to gear carrier assembly.
    GNSJPDID0356Z-356Courtesy of NISSAN NORTH AMERICA, INC.

    A

    : Drift [SST: ST30613000 (J-25742-3)]

    B

    : Drift [SST: ST30613000 (J-25742-3)]

    CAUTION:
    • The drift shall be placed on the center of the adjusting washers.
    • The pressure shall be as low as possible to install differential assembly into gear carrier assembly. The maximum pressure shall be 10 kN (1 ton, 1.1 US ton, 1.0 Imp ton).
    • If the adjusting washers are installed by tapping, the gear carrier may be damaged. Avoid tapping.
  6. Install dummy cover set [SST: KV385J9010 (--)], check and adjust drive gear runout, tooth contact, backlash, and total preload torque. Refer to REAR FINAL DRIVE DIFFERENTIAL ASSEMBLY : Adjustment .
  7. Remove dummy cover set.
  8. Install stud bolt to rear cover in the following specified length.
    GNSJSDIA4766Z-766Courtesy of NISSAN NORTH AMERICA, INC.

    Length (L)

    : 47.3 mm (1.862 in) or less

  9. Apply liquid gasket to mating surface of rear cover.
    GNSJSDIA4767Z-767Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Remove old gasket from the mounting surfaces. Also remove any moisture, oil, or foreign material from the mounting surfaces.
    • The width of sealant bead is approximately 3 mm (0.12 in). Apply sealant evenly.
  10. Set the drifts (A and B) to the right and left side bearing adjusting washers individually. Compress differential assembly and side bearing to install rear cover.
    GNSJPDID0355Z-355Courtesy of NISSAN NORTH AMERICA, INC.

    A

    : Drift [SST: ST30613000 (J-25742-3)]

    B

    : Drift [SST: ST30613000 (J-25742-3)]

    CAUTION:
    • The drift shall be placed on the center of the adjusting washers.
    • The pressure shall be as low as possible to install the rear cover. The maximum pressure shall be 10 kN (1 ton, 1.1 US ton, 1.0 Imp ton).
    • If rear cover is forced in by tapping, rear cover may be damaged by adjusting washers. Avoid tapping.
  11. Tighten rear cover mounting bolts to the specified torque.
  12. Using the drift (A) [SST: KV40104830 (--)], drive side oil seals until it becomes flush with the carrier end.
    GNSJPDID0357Z-357Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Never reuse oil seals.
    • When installing, do not incline oil seals.
    • Apply multi-purpose grease onto oil seal lips, and gear oil onto the circumference of oil seal.
  13. Check total preload torque. Refer to REAR FINAL DRIVE DIFFERENTIAL ASSEMBLY : Adjustment .