Subaru IMPREZA 2004 Service Manual page 41

ST 18631AA000 HANDLE
ST
5) Repeat step 3) and 4) until the left side retainer
can not be rotated. For the right side retainer,
screw in until the inner race and outer race contacts
lightly. This condition is "0" backlash.
6) Mark an engagement point on the right and left
side retainer and clutch housing.
7) Return the left side retainer for three teeth, and
screw in the right side retainer for three teeth.
8) Using the ST, secure the drive pinion shaft.
ST 18621AA000 ADAPTER WRENCH
9) Install the SUBARU genuine axle shafts to both
sides of front differential.
Parts No. 38415AA000 AXLE SHAFT
10) 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
Front Differential Assembly
Hypoid gear backlash:
MT-00653
11) If the backlash is out of specification, adjust it
by turning the right and left side retainers.
12) Screw in the right side retainer for further 1.75
teeth.
2. TOOTH CONTACT OF HYPOID GEAR
Refer to the section of drive pinion shaft for check-
ing of tooth contact. <Ref. to 6MT-108, TOOTH
CONTACT OF HYPOID GEAR, INSPECTION,
Front Differential Assembly.>
MT-00658
ST
MT-00674
6MT-109
MANUAL TRANSMISSION AND DIFFERENTIAL
0.13 — 0.18 mm (0.0051 — 0.0071 in)
MT-00675