HYPOID Gear Backlash

WARNING: This page is about a different variant/trim than selected.

Set the ST1, ST2 and ST3. Insert the dial gauge probe through drain plug hole so that the probe comes in contact with the tooth surface on the right corner, and check the backlash.
ST1 498247001 MAGNET BASE

ST2 498247100 DIAL GAUGE

ST3 498255400 PLATE
Install SUBARU genuine axle shafts to both sides, rotate in the inversion direction so that the gauge contacts the tooth surface, and read the dial gauge.
NOTE: If the backlash is outside the specified range, adjust it by turning the side retainers on the left and right side.

Backlash

0.13 - 0.18 mm (0.0051 - 0.0071 in)

Part No. 38415AA100 Axle shaft

Fig 1: Checking Hypoid Gear Backlash Using Special Tools
Courtesy of SUBARU OF AMERICA, INC.