Subaru IMPREZA 2004 Service Manual page 37

NOTE:
Be careful not to damage the oil seal.
(B)
(A)
(A) Left side
(B) Right side
5) Check and adjust the hypoid gear backlash.
<Ref. to 6MT-108, HYPOID GEAR BACKLASH,
INSPECTION, Front Differential Assembly.>
6) Check and adjust the tooth contact. <Ref. to
6MT-101, ADJUSTMENT, Drive Pinion Shaft As-
sembly.>
7) Mark an engagement point on the right and left
side retainer and clutch housing.
8) Remove the differential side retainer from both
side.
NOTE:
Note the rotating number of time till removal, when
removing the side retainer.
9) Install a new O-ring to side retainer of both side.
Front Differential Assembly
ST1
ST2
MT-00657
MT-00658
6MT-105
MANUAL TRANSMISSION AND DIFFERENTIAL
10) Install the differential side retainer to both side.
NOTE:
Install the side retainer by screwing in the same ro-
tating number of time till removal, and then align
the mark.
11) Install the lock plate.
Tightening torque:
25 N·m (2.5 kgf-m, 18.1 ft-lb)
NOTE:
Be careful not to confuse right and left lock plate.
(A)
(A) Left
(B) Right
12) Completely remove the remaining gasket from
the clutch housing and adapter plate.
13) Apply liquid gasket to the clutch housing.
Liquid gasket:
THREE BOND 1215
14) Install the drive pinion shaft assembly. <Ref. to
6MT-98, INSTALLATION, Drive Pinion Shaft As-
sembly.>
15) Install each gear assembly at once. <Ref. to
6MT-71, INSTALLATION, Main Shaft Assembly.>
16) Install the transmission case. <Ref. to 6MT-67,
INSTALLATION, Transmission Case.>
17) Install the oil pump. <Ref. to 6MT-63, INSTAL-
LATION, Oil Pump.>
18) Install the center differential. <Ref. to 6MT-61,
INSTALLATION, Center Differential.>
19) Install the transfer driven gear. <Ref. to 6MT-
59, INSTALLATION, Transfer Driven Gear.>
(B)
MT-00659
MT-00532