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Home >> Subaru >> 2005 >> Baja Base, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> Front Differential >> Assembly >> Differential Case Assembly

Differential Case Assembly

  1. Install the washer, differential bevel gear and differential bevel pinion in the differential case (RH). Insert the pinion shaft.
  2. Install straight pin from reverse direction.
    Fig 1: Installing Straight Pin From Reverse Direction
    G03750681Courtesy of SUBARU OF AMERICA, INC.
  3. Install the washer and differential bevel gear to the differential case (LH). Then put the case over the differential case (RH), and connect both cases.
  4. Install the crown gear and secure by tightening the bolt.

    Standard tightening torque: 

    62 N.m (6.3 kgf-m, 45.6 ft-lb) 

    Fig 2: Installing Crown Gear And Securing By Tightening Bolt
    G03750682Courtesy of SUBARU OF AMERICA, INC.
  5. Measurement of backlash (Selection of washer)
    1. Install SUBARU genuine axle shaft to differential case. (TURBO model)
    2. Measure the gear backlash with ST1 and ST2, and insert ST2 through the access window of the case.

      ST1 498247001 MAGNET BASE

      ST2 498247100 DIAL GAUGE

      NOTE:
      • Measure the backlash by applying a pinion tooth between two bevel gear teeth.
      • Fix bevel pinion gear in place with a screwdriver or similar tool when measuring.

      Standard value: 

      0.13 - 0.18 mm (0.0051 - 0.0071 in) 

      Fig 3: Measuring Gear Backlash Using Magnet Base ST1-498247001 And Dial Gauge ST2-498247100
      G03750683Courtesy of SUBARU OF AMERICA, INC.
    3. If backlash is not as specified, select a washer from the table below.
      WASHER THICKNESS SPECIFICATION

      Washer
      Part No. Thickness mm (in)
      803038021 0.95 (0.037)
      803038022 1.00 (0.039)
      803038023 1.05 (0.041)
    4. Using ST, install taper roller bearing.

      ST 398437700 DRIFT

      Fig 4: Installing Taper Roller Bearing Using Drift ST398437700
      G03750684Courtesy of SUBARU OF AMERICA, INC.
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