Subaru IMPREZA GD 2007 Series Manual page 3010

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4) Use the ST to turn the drive pinion shaft a few
times.
ST 18631AA000 HANDLE
ST
5) Repeat steps 3) and 4) until differential side re-
tainer LH does not turn anymore. For differential
side retainer RH, screw in until the inner race and
outer race just comes into contact. This is the "ze-
ro" backlash state.
6) Mark the mating positions of the left and right
side retainers and the clutch housing.
7) Turn the back differential side retainer LH by 3
notches, and screw in the differential side retainer
RH by 3 notches.
8) Temporarily attach the LH side retainer lock
plate.
9) Turn the differential side retainer RH by 1.25
notches.
10) Temporarily attach the RH side retainer lock
plate.
NOTE:
• If the lock plate cannot be aligned, adjust the po-
sition toward the tightened side.
• The notch on the lock plate moves by 0.5 notch if
the lock plate is turned upside down when installed.
Front Differential Assembly
MANUAL TRANSMISSION AND DIFFERENTIAL
11) Use the ST to fix the drive pinion shaft in place.
ST 18621AA000 ADAPTER WRENCH
MT-00653
12) Attach the axle shafts to the right and left sides
of the front differential.
Part No. 38415AA000AXLE SHAFT
13) Move the axle shaft, and measure the hypoid
gear backlash.
ST1
ST2 498247001
ST3 498247100
Hypoid gear backlash:
0.13 — 0.18 mm (0.0051 — 0.0071 in)
MT-00658
14) If the backlash is out of specified range, re-
move the left and right retainer lock plates and
loosen RH side differential side retainer. Then, ad-
just the LH side differential side retainer by turning
it, and attach the LH side retainer lock plate.
15) Screw in the RH side differential side retainer
until the inner race and outer race just come into
contact.
2. TOOTH CONTACT OF HYPOID GEAR
Regarding teeth contact conditions, refer to the
drive pinion section. <Ref. to 6MT-104, TOOTH
CONTACT OF HYPOID GEAR, INSPECTION,
Front Differential Assembly.>
6MT-105
498255400 PLATE
MAGNET BASE
DIAL GAUGE
ST3
ST2
ST
MT-00674
ST1
MT-00675