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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1671 (Front Final Drive) >> Front Final Drive Assembly >> Disassembly and Assembly >> Assembly >> Drive Pinion Assembly
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Drive Pinion Assembly

WARNING: This page is about a different car, the 2006 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install front and rear bearing outer races using Tools.

    Tool number A: ST30611000 (J-25742-1) 

    B: ST30613000 (J-25742-3) 

    C: KV38100200 (J-26233) 

    CAUTION:
    • First tap the bearing outer race until it becomes flat to the gear carrier.
    • Do not reuse pinion front and rear bearing outer race.
  2. Select drive pinion height adjusting washer. Refer to , "PINION GEAR HEIGHT "
    Fig 1: Installing Front And Rear Bearing Outer Races Using Tools
    G04175116Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Install selected drive pinion height adjusting washer to drive pinion. Press pinion rear bearing inner race to it using Tool.

    Tool number : ST30901000 (J-26010-01) 

    Fig 2: Pressing Pinion Rear Bearing Inner Race Using Tool
    G04175117Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Install the pinion height adjusting washer in the proper direction as shown.
    • Do not reuse pinion rear bearing inner race.
  4. Assemble collapsible spacer to drive pinion.
    CAUTION: Do not reuse collapsible spacer.
  5. Apply gear oil to pinion rear bearing, and assemble drive pinion into gear carrier.
    Fig 3: Assembling Collapsible Spacer To Drive Pinion
    G04175118Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Apply gear oil to pinion front bearing, and assemble pinion front bearing inner race to drive pinion assembly.
    CAUTION: Do not reuse pinion front bearing inner race.
    Fig 4: Assembling Pinion Front Bearing Inner Race To Drive Pinion Assembly
    G04175119Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Press the pinion front bearing inner race to drive pinion as far as drive pinion lock nut can be tightened using Tool.

    Tool number : ST33200000 (J-26082) 

    Fig 5: Pressing Pinion Front Bearing Inner Race To Drive Pinion
    G04175120Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Install front oil seal until it becomes flush with the case end using Tools.

    Tool number A: ST30720000 (J-25405) 

    B: ST27863000 ( - ) 

    Fig 6: Identifying Front Oil Seal
    G04175121Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Do not reuse oil seal.
    • Do not incline oil seal when installing.
    • Apply multi-purpose grease onto oil seal lips, and gear oil onto the circumference of oil seal.
  9. Install companion flange.
    NOTE: When reusing drive pinion, align the matching mark of drive pinion with the matching mark A of companion flange, then install companion flange.
    Fig 7: Aligning Matching Mark Of Drive Pinion With Matching Mark A Of Companion Flange
    G04175122Courtesy of NISSAN MOTOR CO., U.S.A.
  10. Apply gear oil to the thread and seat of new drive pinion lock nut, and temporarily tighten new drive pinion lock nut to drive pinion.
    CAUTION: Do not reuse drive pinion lock nut.
  11. Adjust the drive pinion lock nut tightening torque and pinion bearing preload torque using Tools.

    Tool number A: KV38108300 (J-44195) 

    B: ST3127S000 (J-25765-A) 

    Drive pinion lock nut tightening torque: 

    186 - 294 N.m (19 - 29 kg-m, 138 - 216 ft-lb) 

    Drive pinion bearing preload: 

    1.08 - 1.66 N.m (0.11 - 0.16 kg-m, 10 - 14 in-lb) 

    Fig 8: Adjusting Drive Pinion Lock Nut Tightening Torque And Pinion Bearing Preload Torque
    G04175123Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Adjust the lower limit of the drive pinion lock nut tightening torque first.
    • If the preload torque exceeds the specified value, replace collapsible spacer and tighten it again to adjust. Do not loosen drive pinion lock nut to adjust the preload torque.
    • After adjustment, rotate drive pinion back and forth 2 to 3 times to check for unusual noise, rotation malfunction, and other malfunctions.
  12. Install differential case assembly. Refer to , "DIFFERENTIAL ASSEMBLY "
    CAUTION: Do not install rear cover yet.
  13. 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.

  14. Check total preload torque. Refer to , "TOTAL PRELOAD TORQUE "
  15. Install rear cover. Refer to , "DIFFERENTIAL ASSEMBLY "
  16. Install side shaft assembly. Refer to , "SIDE SHAFT "
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