Subaru Impreza 2003 Service Manual page 1625

31.Reduction Drive Gear
A: REMOVAL
1) Remove the transmission assembly from the ve-
hicle. <Ref. to 4AT-39, REMOVAL, Automatic
Transmission Assembly.>
2) Remove rear vehicle speed sensor, and sepa-
rate the transmission case and extension case.
<Ref. to 4AT-77, REMOVAL, Extension Case.>
3) Remove the reduction driven gear. <Ref. to 4AT-
90, REMOVAL, Reduction Driven Gear.>
4) Using ST, extract the reduction drive gear.
ST1 499737100 PULLER
ST2 899524100 PULLER SET
(A)
ST1
ST2
(A) Reduction drive gear
B: INSTALLATION
1) Install the reduction drive gear assembly.
NOTE:
Insert it fully into position until the bearing shoulder
bottoms.
(A) Reduction drive gear
2) Install the reduction driven gear. <Ref. to 4AT-
91, INSTALLATION, Reduction Driven Gear.>
3) Combine the transmission case with the exten-
sion case, and install rear vehicle speed sensor.
<Ref. to 4AT-77, INSTALLATION, Extension
Case.>
4) Install the transmission assembly to the vehicle.
<Ref. to 4AT-42, INSTALLATION, Automatic
Transmission Assembly.>
REDUCTION DRIVE GEAR
C: DISASSEMBLY
1) Take out the seal rings.
2) Using ST, remove the ball bearing.
ST 498077600
AT-00159
3) Using a press, remove the reduction drive gear.
(A)
AT-00160
4AT-93
AUTOMATIC TRANSMISSION
(A)
(B)
(A) Seal rings
(B) Reduction drive shaft
REMOVER
(A)
(B)
(A) Ball bearing
(B) Reduction drive gear
(A) Reduction drive gear
AT-00161
ST
AT-00162
(A)
AT-00163