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Home › Infiniti › 2016 › QX80 Base, AWD › Repair and Diagnosis › External Pages › Different car › Section 102 (Front Final Drive) › Unit Disassembly And Assembly › Drive Pinion › Assembly

Drive Pinion: Assembly

WARNING: This page is about a different car, the 2016 Infiniti QX50. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install pinion front and rear bearing outer races using drift (A) [SST: ST37820000 (-)].
    G04076268Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • At first, using a hammer, tap bearing outer race until it becomes flat to gear carrier.
    • Never reuse pinion front and rear bearing outer race.
  2. Temporarily install pinion height adjusting washer (1).
    G04076269Courtesy of NISSAN NORTH AMERICA, INC.

    When hypoid gear set has been replaced

    • Select pinion height adjusting washer. Refer to ADJUSTMENT .

    When hypoid gear set has been reused

    • Temporarily install the removed pinion height adjusting washer or same thickness washer to drive pinion.
  3. Install selected pinion height adjusting washer (2) to drive pinion. Press pinion rear bearing inner race (1) to it, using drift (A) [SST: ST30032000 (J-26010-01)].
    G04076270Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Pay attention to the direction of pinion height adjusting washer. (Assemble as shown in the illustration.)
    • Never reuse pinion rear bearing inner race.
  4. Temporarily assemble removed drive pinion adjusting washer and drive pinion bearing adjusting washer or same thickness of them to drive pinion.
    G04076271Courtesy of NISSAN NORTH AMERICA, INC.
  5. Apply gear oil to pinion rear bearing, and assemble drive pinion into gear carrier.
  6. Apply gear oil to pinion front bearing, and assemble pinion front bearing inner race to drive pinion assembly.
    CAUTION:

    Never reuse pinion front bearing inner race.

  7. Using suitable spacer (A) (commercial service tool), press the pinion front bearing inner race to drive pinion as far as drive pinion nut can be tightened.
    G04076272Courtesy of NISSAN NORTH AMERICA, INC.
  8. Adjust pinion bearing preload. If necessary, select the appropriate drive pinion adjusting washer and drive pinion bearing adjusting washer. Refer to ADJUSTMENT .
  9. Using the drifts (A and B), install front oil seal as shown in illustration.
    G04076273Courtesy of NISSAN NORTH AMERICA, INC.
    A: Drift [SST: ST33400001 (J-26082)]
    B: Drift [SST: KV38102510 (-)]
    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.
  10. Install companion flange.
    NOTE:

    When reusing drive pinion, align the matching mark (B) of drive pinion with the matching mark (A) of companion flange, and then install companion flange (1).

    G04076251Courtesy of NISSAN NORTH AMERICA, INC.
  11. Apply anti-corrosion oil to the thread and seat of new drive pinion lock nut, and temporarily tighten drive pinion lock nut to drive pinion, using flange wrench (commercial service tool).
    G04076267Courtesy of NISSAN NORTH AMERICA, INC.
    A: Preload gauge [SST: ST3127S000 (J-25765-A)]
    CAUTION:

    Never reuse drive pinion lock nut.

  12. Tighten to drive pinion lock nut, while adjusting pinion bearing preload torque, using preload gauge [SST: ST3127S000 (J-25765-A)].
    Pinion bearing preload : Refer to PRELOAD TORQUE .
    CAUTION:
    • Adjust to the lower limit of the drive pinion lock nut tightening torque first.
    • After adjustment, rotate drive pinion back and forth 2 to 3 times to check for unusual noise, rotation malfunction, and other malfunctions.
  13. Install differential case assembly. Refer to ASSEMBLY .
    CAUTION:

    Never install carrier cover yet.

  14. Check and adjust drive gear runout, tooth contact, drive gear to drive pinion backlash, and companion flange runout. Refer to ADJUSTMENT  and ADJUSTMENT .

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

  15. Check total preload torque. Refer to ADJUSTMENT .
  16. Install carrier cover. Refer to ASSEMBLY .
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