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Home >> Infiniti >> 2014 >> QX50 Base, AWD >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Front Final Drive >> Unit Disassembly And Assembly >> Drive Pinion >> Disassembly

Drive Pinion: Disassembly

  1. Remove differential case assembly. Refer to "DISASSEMBLY ".
  2. Remove drive pinion lock nut with a flange wrench (commercial service tool).
    Fig 1: Removing Drive Pinion Lock Nut Using Flange Wrench
    G07016713Courtesy of NISSAN NORTH AMERICA, INC.
  3. Put matching mark (B) on the end of drive pinion. The matching mark should be in line with the matching mark (A) on companion flange (1).
    CAUTION: For matching mark, use paint. Never damage companion flange and drive pinion.
    NOTE: The matching mark on the final drive companion flange indicates the maximum vertical runout position.
    When replacing companion flange, matching mark is not necessary.
    Fig 2: Identifying Drive Pinion And Companion Flange Matching Mark
    G07016714Courtesy of NISSAN NORTH AMERICA, INC.
  4. Remove companion flange using the suitable puller (commercial service tool).
    Fig 3: Removing Companion Flange Using Puller
    G07016715Courtesy of NISSAN NORTH AMERICA, INC.
  5. Press drive pinion assembly out of gear carrier.
    CAUTION: Never drop drive pinion assembly.
    Fig 4: Pressing Drive Pinion Assembly Out Of Gear Carrier
    G07016716Courtesy of NISSAN NORTH AMERICA, INC.
  6. Remove front oil seal.
  7. Remove pinion front bearing inner race.
  8. Remove drive pinion bearing adjusting washer and drive pinion adjusting washer.
  9. Remove pinion rear bearing inner race and pinion height adjusting washer with replacer (A) (commercial service tool).
    Fig 5: Removing Pinion Rear Bearing Inner Race And Pinion Height Adjusting Washer
    G07016717Courtesy of NISSAN NORTH AMERICA, INC.
  10. Tap pinion front/rear bearing outer races uniformly a brass rod or equivalent to removed.
    CAUTION: Never damage gear carrier.
    Fig 6: Tapping Out Pinion Front/Rear Bearing Outer Races
    G07016718Courtesy of NISSAN NORTH AMERICA, INC.