Differential Case Assembly

Install the washer, differential bevel gear and differential bevel pinion in the differential case (RH). Insert the pinion shaft.
Attach the straight pin in the reverse direction.

Fig 1: Identifying Differential Case
Courtesy of SUBARU OF AMERICA, INC.
Install the washer and differential bevel gear to differential case (LH). Put the differential case (LH) on the differential case (RH), and assemble the two differential cases.
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: Identifying Hypoid Driven Gear And Differential Case
Courtesy of SUBARU OF AMERICA, INC.
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 through the access window of differential case.
  NOTE:
  - Measure the backlash by applying a differential bevel pinion tooth between two differential bevel gear teeth.
  - When measuring, fix the differential bevel pinion gear in place with a screwdriver covered with waste cloth, or a similar tool.
  Standard:
  
  0.13 - 0.18 mm (0.0051 - 0.0071 in)
  
  ST1 498247001 MAGNET BASE
  
  ST2 498247100 DIAL GAUGE
  
  Fig 3: Measuring Gear Backlash Using Magnet Base And Dial Gauge
  Courtesy of SUBARU OF AMERICA, INC.

If the backlash is not within specification, select a washer from the table below.