FixVault

Differential Case Assembly

  1. Install the differential bevel gear and bevel pinion together with washers, and insert pinion shaft.
    NOTE: Face the chamfered side of washer toward gear.
    Fig 1: Inserting Pinion Shaft
    G00937380Courtesy of SUBARU OF AMERICA, INC.
  2. Measure the backlash between differential bevel gear and pinion. If it is not within specifications, install a suitable washer to adjust it. < Ref. to ADJUSTMENT . >
    NOTE: Be sure the pinion gear tooth contacts adjacent gear teeth during measurement.

    ST1 498247001 MAGNET BASE

    ST2 498247100 DIAL GAUGE

    1. Standard backlash: 0.13 - 0.18 mm (0.0051 - 0.0071 in) 
    Fig 2: Measuring Backlash Between Differential Bevel Gear And Pinion
    G00937381Courtesy of SUBARU OF AMERICA, INC.
  3. Align the pinion shaft and differential case at their holes, and drive the straight pin into holes from the hypoid driven gear side, using ST.
    NOTE: Lock the straight pin after installing.

    ST 899904100 REMOVER

    Fig 3: Identifying Pinion Shaft, Differential Case And Straight Pin
    G00937382Courtesy of SUBARU OF AMERICA, INC.
  4. Install the roller bearing to differential case.
    CAUTION: Do not apply pressure in excess of 10 kN (1 ton, 1.1 US ton, 1.0 lmp ton).
    NOTE: Be careful because the roller bearing outer races are used as a set.

    ST1 499277100 BUSH 1-2 INSTALLER

    ST2 398497701 ADAPTER

    Fig 4: Identifying Roller Bearing
    G00937383Courtesy of SUBARU OF AMERICA, INC.
  5. Install the hypoid driven gear to differential case using twelve bolts.
    1. Tightening torque: T: 62 N.m (6.3 kgf-m, 45.6 ft-lb) 
    Fig 5: Identifying Hypoid Driven Gear
    G00937384Courtesy of SUBARU OF AMERICA, INC.