Subaru LEGACY 2004 Service Manual page 115

Rear Differential (T-type)
DIFFERENTIALS
3) Set the gauge inside of the companion flange,
and measure the runout.
Limit of runout:
0.08 mm (0.0031 in)
DI-00361
4) If either runout exceeds the limit, move the
phase of companion flange and drive pinion 90°
each, and find the point where the runout is within
the limit.
5) If the runout exceeds the limit after changing the
phase, replace the companion flange and recheck
the runout.
6) If the runout exceeds the limit after replacing the
companion flange, the drive pinion may be assem-
bled incorrectly or bearing is faulty.
F: ADJUSTMENT
1. SIDE GEAR BACKLASH
Adjust the side gear backlash.
<Ref. to DI-35, ASSEMBLY, Rear Differential (T-
type).>
2. HYPOID DRIVEN GEAR BACKLASH
Adjust hypoid driven gear backlash.
<Ref. to DI-35, ASSEMBLY, Rear Differential (T-
type).>
3. TOOTH CONTACT BETWEEN HYPOID
DRIVEN GEAR AND DRIVE PINION
Adjust the tooth contact between hypoid driven
gear and drive pinion gear.
<Ref. to DI-35, ASSEMBLY, Rear Differential (T-
type).>
4. TOTAL PRELOAD
Adjust the side bearing shim.
<Ref. to DI-35, ASSEMBLY, Rear Differential (T-
type).>
DI-45