Subaru 2009 IMPREZA Service Manual page 1866

AUTOMATIC TRANSMISSION
5. HIGH CLUTCH AND REVERSE CLUTCH
(1) High clutch drum
(2) Lip seal
(3) D-ring
(4) Reverse clutch piston
(5) D-ring
(6) D-ring
(7) High clutch piston
General Description
(8) Spring retainer
(9) Clutch cover
(10) Snap ring
(11) Driven plate (high clutch)
(12) Drive plate (high clutch)
(13) Retaining plate (high clutch)
(14) Snap ring
4AT-10
(15) Dish plate
(16) Driven plate (reverse clutch)
(17) Drive plate (reverse clutch)
(18) Retaining plate (reverse clutch)
(19) Snap ring
(20) Thrust needle bearing
(21) High clutch hub
AT-00006