Differential Case Assembly

Install the washer and differential bevel gear into the differential case (RH).

Fig 1: Identifying Washer And Differential Bevel Gear
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Install the differential bevel pinions into differential case (RH) and install the pinion shaft.

Fig 2: Identifying Pinion Shaft, Bevel Gear And Differential Bevel Pinion
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Install the straight pin.

Fig 3: Locating Straight Pin
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Install the washer and differential bevel gear to the differential case (LH).

Fig 4: Identifying Washer And Differential Bevel Gear
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Install the differential case (RH) to the hypoid driven gear.

Fig 5: Installing Differential Case (RH) To Hypoid Driven Gear
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Install the differential case (LH) to the differential case (RH).
Using the ST, install the hypoid driven gear by tightening the installation bolt.
ST 18270KA020 SOCKET (E20)

Tightening torque:

64 N.m (6.5 kgf-m, 47.2 ft-lb)

Fig 6: Installing Hypoid Driven Gear
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Measure the backlash, and select the washer.

Install the SUBARU genuine axle shaft to differential case.
Part No. 38415AA070 Axle shaft
Using ST1 and ST2, insert the ST2 through the window of differential case. Measure the backlash of the gear.
NOTE:
- Measure the backlash by applying a differential bevel pinion tooth between two differential bevel gear teeth.
- When measuring, fix the differential bevel pinion in place with a screwdriver covered with cloth, or a similar tool.
ST1 498247001 MAGNET BASE

ST2 498247100 DIAL GAUGE

Specification:

0.13 - 0.18 mm (0.0051 - 0.0071 in)

Fig 7: Measuring Backlash Using Dial Gauge
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If the backlash is not within specification, select a washer from the table below and replace.