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Home >> Subaru >> 2008 >> Outback Base, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Automatic Transmission (5AT)) >> Front Differential Assembly >> Assembly >> Differential Case Assembly
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Differential Case Assembly

WARNING: This page is about a different variant/trim than selected.
  1. Install the washer, differential bevel gear and differential bevel pinion in the differential case (RH). Insert the pinion shaft.
  2. Attach the straight pin in the reverse direction.
    Fig 1: Attaching Straight Pin In Reverse Direction
    G05668912Courtesy of SUBARU OF AMERICA, INC.
  3. Install the washer and differential bevel gear to the differential case (LH). Put the differential case (RH) on the case, and assemble two cases.
  4. Install the hypoid driven gear and secure by tightening the bolt.

    Tightening torque: 

    70 N.m (7.1 kgf-m, 51.6 ft-lb) 

    Fig 2: Installing Hypoid Driven Gear And Secure By Tightening Bolt
    G05668913Courtesy of SUBARU OF AMERICA, INC.
  5. Measurement of backlash (Selection of washer)
    1. Install the SUBARU genuine axle shaft to differential case.

      Part No. 38415AA070 AXLE SHAFT

    2. Measure the gear backlash using ST1 and ST2, and then insert the ST2 though the access window of case.

      ST1 498247001 MAGNET BASE

      ST2 498247100 DIAL GAUGE

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

      Standard: 

      0.13 - 0.18 mm (0.0051 - 0.0071 in) 

      Fig 3: Measuring Gear Backlash Using ST1 And ST2
      G05002724Courtesy of SUBARU OF AMERICA, INC.
    3. If the backlash is not within specification, select a washer from the table below.
      WASHER REFERENCE

      Washer
      Part number Thickness mm (in)
      803038021 0.95 (0.037)
      803038022 1.00 (0.039)
      803038023 1.05 (0.041)
  6. Using the ST, install the taper roller bearing.

    ST 398487700 DRIFT