Subaru IMPREZA GD 2007 Series Manual page 3298

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DIFFERENTIALS
D: ASSEMBLY
1. EXCEPT FOR STI MODEL
NOTE:
• Assemble in the reverse order of disassembly.
• Check and adjust each part during assembly.
• Keep the shims and washers in order, so that
they are not improperly installed.
• Thoroughly clean the surfaces on which the
shims, washers and bearings are to be installed.
• Apply gear oil when installing the bearings and
thrust washers.
• Be careful not to mix up the RH and LH bearing
races.
• Use a new O-ring and gasket.
• Replace the oil seal with a new part at every dis-
assembly. Apply grease to the lips when installing
the oil seal.
• Be careful not to install the oil seal in the wrong
direction.
1) Adjusting preload for front and rear bearings
Adjust the bearing preload between front and rear
bearings with spacer and washer. Pinion height ad-
justing washer is not affected by this adjustment.
The adjustment must not be carried out with oil seal
inserted.
(1) Install the rear bearing race into the differen-
tial carrier using ST1 and ST2.
ST1 398477701 HANDLE
ST2 398477703 DRIFT 2
ST1
(2) Install the front bearing race to the differen-
tial carrier using ST1 and ST2.
ST1 398477701 HANDLE
ST2 398477702 DRIFT
Rear Differential
(3) Insert the ST1 into carrier with the pinion
height adjusting washer and rear bearing cone
fitted onto it.
NOTE:
• If tooth contact (drive pinion, hypoid driven gear)
is normal in the inspection before disassembling,
verify that the washer is not deformed, and then re-
use the used washer.
• Use new rear bearing cone.
(4) Install the preload adjusting spacer and
washer, front bearing cone, ST2, companion
flange, washer and drive pinion nut.
ST1
ST2 398507703
(A)
(C) Preload adjusting washer
DI-00078
ST2
DI-00079
DI-32
398507702 DUMMY SHAFT
DUMMY COLLAR
(B)
(C)
ST1
ST2
(A) Pinion height adjusting washer
(B) Preload adjusting spacer
DI-00080