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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1755 (Front Final Drive (Sedan)) >> Front Final Drive Assembly >> Disassembly and Assembly >> Assembly >> Drive Pinion Assembly

Drive Pinion Assembly

WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install front and rear bearing outer races using drifts.
    Fig 1: Identifying Front And Rear Bearing Outer Races
    G04121462Courtesy of NISSAN MOTOR CO., U.S.A.

    Tool number : ST37820000 ( - ) 

    CAUTION:
    • At first, using a hammer, tap bearing outer race until it becomes flat to gear carrier.
    • Do not reuse pinion front and rear bearing outer race.
  2. Temporarily install pinion height adjusting washer.
    Fig 2: Identifying Pinion Height Adjusting Washer
    G04121463Courtesy of NISSAN MOTOR CO., U.S.A.

    When hypoid gear set has been replaced 

    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 drive pinion height adjusting washer to drive pinion. Press pinion rear bearing inner race to it, using drift.
    Fig 3: Identifying Drive Pinion Height Adjusting Washer
    G04121464Courtesy of NISSAN MOTOR CO., U.S.A.

    Tool number : ST30032000 (J-26010-01) 

    CAUTION:
    • Pay attention to the direction of pinion height adjusting washer. (Assemble as shown in the figure.)
    • Do not reuse pinion rear bearing inner race.
  4. Temporarily assemble removed drive pinion adjusting washer and drive pinion bearing adjusting washer or same thickness them to drive pinion.
  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.
    Fig 4: Applying Gear Oil To Pinion Bearing
    G04121465Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION: Do not reuse pinion front bearing inner race.
  7. Using suitable spacer, press the pinion front bearing inner race to drive pinon as far as drive pinion nut can be tightened.
  8. Adjust pinion bearing preload. If necessary, select the appropriate drive pinion adjusting washer and drive pinion bearing adjusting washer. Refer to "PINION BEARING PRELOAD ".
    Fig 5: Pressing Pinion Front Bearing Inner Race To Drive Pinon
    G04121466Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Using the drift, install front oil seal as shown in figure.
    Fig 6: Installing Front Oil Seal
    G04121467Courtesy of NISSAN MOTOR CO., U.S.A.

    Tool number A: ST33400001 (J-26082) 

    B: KV38102510 ( - ) 

    CAUTION:
    • Do not reuse oil seal.
    • When installing, do not incline oil seal.
    • Apply multi-purpose grease onto oil seal lips, and gear oil onto the circumference of oil seal.
  10. Install companion flange.
    Fig 7: Aligning Matching Mark
    G04121468Courtesy of NISSAN MOTOR CO., U.S.A.
    NOTE: When reusing drive pinion, align the matching mark of drive pinion with the matching mark A of companion flange, then install companion flange.
  11. Apply gear oil to the thread and seat of new drive pinion lock nut, and temporarily tighten drive pinion lock nut to drive pinion.
    CAUTION: Do not reuse drive pinion lock nut.
  12. Tighten to drive pinon lock nut, while adjust pinion bearing preload torque.
    Fig 8: Tightening Drive Pinon Lock Nut
    G04121469Courtesy of NISSAN MOTOR CO., U.S.A.

    Tool number : ST3127S000 (J-25765-A) 

    Drive pinion lock nut tightening torque: 127.4 - 245.0 N.m (13 - 25 kg-m, 94 - 181 ft-lb) 

    Pinion bearing preload: 0.78 - 1.57 N.m (0.08 - 0.16 kg-m, 7 - 13 in-lb) 

    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 "DIFFERENTIAL ASSEMBLY ".
    CAUTION: Do not 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 "DRIVE GEAR RUNOUT ", "TOOTH CONTACT ", "BACKLASH ", "COMPANION FLANGE RUNOUT ".

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

  15. Check total preload torque. Refer to "TOTAL PRELOAD TORQUE ".
  16. Install carrier cover. Refer to "DIFFERENTIAL ASSEMBLY ".
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