Differential Case Assembly

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

Fig 1: Installing Straight Pin
Courtesy of SUBARU OF AMERICA, INC.
Install the washer and differential bevel gear to differential case (LH). Put the differential case (RH) on the case, and then combine the both cases.
Install the hypoid driven gear and secure by tightening the bolt.
Tightening torque:

62 N.m (6.3 kgf-m, 45.6 ft-lb)

Fig 2: Installing Differential Case (RH) And Case (LH)
Courtesy of SUBARU OF AMERICA, INC.

Measurement of backlash (Selection of washer)

Install the SUBARU genuine axle shaft to differential case.
Parts No. 38415AA070AXLE SHAFT
Measure the gear backlash using ST1 and ST2, and then insert the ST2 from the access window of case.
ST1 498247001 MAGNET BASE

ST2 498247100 DIAL GAUGE
NOTE:
- Measure the backlash by applying a pinion tooth between two bevel gear teeth.
- Fix the 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
Courtesy of SUBARU OF AMERICA, INC.
If the backlash is not within specifications, select a washer from the table below.

WASHER THICKNESS SPECIFICATION