Reduction Driven Gear: Removal

Remove the transmission assembly from vehicle body. Refer to REMOVAL , Automatic Transmission Assembly.
Remove the rear vehicle speed sensor, and separate the extension case from transmission case. Refer to REMOVAL , Extension Case.
Set the range select lever to the "P" range.
Lift the crimped section, and then remove the lock nut.

Fig 1: Removing Lock Nut
Courtesy of SUBARU OF AMERICA, INC.
Using the ST1 and ST2, extract the reduction driven gear.
ST1 499737000 PULLER

ST2 899524100 PULLER SET

Fig 2: Extracting Reduction Driven Gear Using ST1 499737000 Puller And ST2 899524100 Puller Set
Courtesy of SUBARU OF AMERICA, INC.