Subaru Impreza 2002 Service Manual page 410

8) Using the ST, secure the drive pinion shaft.
ST 18621AA000 ADAPTER WRENCH
9) After rotating the drive pinion shaft several
times, measure the hypoid gear backlash using the
ST.
ST1 498255400 PLATE
ST2 498247001 MAGNET BASE
ST3 498247100 DIAL GAUGE
Hypoid gear backlash:
0.13 — 0.18 mm (0.0051 — 0.0071 in)
10) If the backlash is out of specification, adjust it
by turning the right and left side retainers.
11) Screw in the right side retainer for further 1.75
teeth.
3. TOOTH CONTACT OF HYPOID GEAR
Refer to the section of drive pinion shaft for check-
ing of tooth contact. <Ref. to 6MT-113, TOOTH
CONTACT OF HYPOID GEAR, INSPECTION,
Front Differential Assembly.>
FRONT DIFFERENTIAL ASSEMBLY
TR0829
TR0830
6MT-115
MANUAL TRANSMISSION AND DIFFERENTIAL