Differential Case Assembly

ST 18270KA020 SOCKET (E20)

Fig 6: Installing Hypoid Driven Gear Mounting Bolt Using Socket E20 (ST 18270KA020)

Courtesy of SUBARU OF AMERICA, INC.

Tightening torque: 

20 N.m (2.0 kgf-m, 14.8 ft-lb) 

Tightening angle: 

45°  ±2° 

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 window of differential 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.
   • When measuring, fix the differential bevel pinion in place with a screwdriver covered with cloth, or a similar tool.

   Specification: 

   0.13 - 0.18 mm (0.0051 - 0.0071 in) 

   Fig 7: Measuring Gear Backlash Using Dial Gauge (ST2 498247100)

   Courtesy of SUBARU OF AMERICA, INC.
3. If the backlash is not within specification, select a washer from the table below and replace.

ST1 499277100 BUSHING 1-2 INSTALLER

ST2 398497701 SEAT

Fig 8: Installing Taper Roller Bearings Using Bushing 1-2 Installer (ST1 499277100)

Courtesy of SUBARU OF AMERICA, INC.