Subaru 2009 IMPREZA Service Manual page 2123

11) Remove the weight, and screw in the retainer
without the O-ring on the upper side, and stop at
the point where a slight resistance is felt.
NOTE:
In this condition, the backlash between hypoid gear
and drive pinion shaft is zero.
ST 18630AA010 WRENCH COMPL RETAINER
ST
12) Loosen the retainer on the lower side by 3
notches, and turn the retainer on the upper side by
the same amount in order to apply backlash.
13) Rotate the retainer of the upper side additional-
ly by 1 notch in order to apply preload on taper roll-
er bearing.
14) Temporarily attach both the upper and lower
lock plates, and put marks both the retainer and
lock plate for later readjustment.
NOTE:
If it is hard to install the lock plates, reverse the
sides and install them.
15) Turn the transmission main shaft several times
while tapping around the retainer lightly with plastic
hammer.
16) Inspect and adjust backlash and tooth contact
of the hypoid gear. <Ref. to 5MT-70, INSPECTION,
Front Differential Assembly.>
Transmission Case
17) After checking the tooth contact of the hypoid
gears, remove the lock plate. Then loosen the re-
tainer until the O-ring groove appears. Fit the O-
ring into the groove and tighten the retainer into the
position before it was loosened.
Install the lock plate.
NOTE:
• When loosening the retainer, record the number
of the turns made.
• Perform this operation for both upper and lower
retainers.
Tightening torque:
T: 25 N·m (2.5 kgf-m, 18.4 ft-lb)
MT-00176
18) Select a main shaft rear plate. <Ref. to 5MT-56,
ADJUSTMENT, Main Shaft Assembly for Single-
Range.>
19) Install the clutch release lever and bearing.
<Ref. to CL-14, INSTALLATION, Release Bearing
and Lever.>
20) Install the transfer case together with the exten-
sion case assembly. <Ref. to 5MT-36, INSTALLA-
TION, Transfer Case and Extension Case
Assembly.>
21) Install the manual transmission assembly to the
vehicle. <Ref. to 5MT-25, INSTALLATION, Manual
Transmission Assembly.>
C: INSPECTION
Check the transmission case for cracks, damage,
or oil leaks.
5MT-51
MANUAL TRANSMISSION AND DIFFERENTIAL
T
MT-00177