Subaru LEGACY 2004 Service Manual page 133

1) Adjusting preload for front and rear bearings:
Adjust the bearing preload with collar and washer
between front and rear bearings. Pinion height ad-
justing washer are not affected by this adjustment.
The adjustment must be carried out without oil seal
inserted.
(1) Install the rear bearing race into differential
carrier with ST1 and ST2.
ST1 398477701 HANDLE
ST2 398477703 DRIFT 2
ST2
(2) Using the ST, install the front bearing race to
the differential carrier.
ST 499277200 INSTALLER
(3) Insert the front bearing cone.
NOTE:
Use new front bearing cone.
(4) Measure and record the thickness of pinion
adjust washer.
NOTE:
If tooth contact (drive pinion, hypoid driven gear) is
normal in the inspection before disassembling, ver-
ify that the washer is not deformed, and then re-use
the used washer.
(5) Insert the ST1 into carrier with pinion height
adjusting washer and rear bearing cone fitted
onto it.
NOTE:
Use new rear bearing cone.
(6) Install the preload adjusting collar and
washer, front bearing cone, collar, companion
flange, and washer and self-locking nut.
Rear Differential (VA-type)
ST1
DI-00375
ST
DI-00376
DI-63
ST1 18678AA000 DUMMY SHAFT
(A)
(B)
(C)
(A) Pinion height adjusting washer
(B) Preload adjusting collar
(C) Preload adjusting washer
(D) Collar
(7) Turn the ST1 with hand to make it seated,
and tighten the self-locking nut while measuring
the preload with spring balance. Select the pre-
load adjusting washer and collar so that the
specified preload is obtained when nut is tight-
ened to the specified torque.
NOTE:
• Use a new self-locking nut.
• Be careful not to give excessive preload.
• When tightening the self-locking nut, lock com-
panion flange with ST2 as shown in the figure.
• Measure the preload in direction of tangent to
flange.
ST1 18678AA000 DUMMY SHAFT
ST2 498427200 FLANGE WRENCH
DIFFERENTIALS
(D)
ST1
DI-00377
DI-00152