Subaru Impreza 2003 Service Manual page 1642

AUTOMATIC TRANSMISSION
Corrective action: Increase thickness of drive pin-
ion height adjusting shim in order to bring drive pin-
ion close to crown gear.
• Flank contact
Checking item: Backlash is too small.
Contact pattern
Corrective action: Reduce thickness of drive pinion
height adjusting shim in order to move drive pinion
away from crown gear.
DRIVE PINION SHAFT
• Toe contact (Inside end contact)
Checking item: Contact areas is small.
Contact pattern
AT-00212
Corrective action: Decrease thickness of drive pin-
ion height adjusting shim in order to move drive pin-
ion away from crown gear.
AT-00209
• Heel contact (Outside end contact)
Checking item: Contact areas is small.
Contact pattern
AT-00213
4AT-110
AT-00210
AT-00213
AT-00211