WARNING: This page is about a different car, the 2006 Subaru Outback and 2006 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
Remove the front sun gear.
Fig 1: Identifying Front Sun Gear
Remove the snap ring, and then remove the front carrier.
Fig 2: Removing Front Carrier
Remove the input clutch assembly from rear internal gear.
Fig 3: Removing Input Clutch Assembly From Rear Internal Gear