AT Main Case: Disassembly

HIGH CLUTCH, REVERSE CLUTCH
1. Remove the snap ring, and take out the retaining plate, drive plates, driven plates.
  
  Fig 1: Removing Snap Ring
  Courtesy of SUBARU OF AMERICA, INC.
2. Remove snap ring, and take out the retaining plate, drive plates and driven plates.
  
  Fig 2: Removing Retaining Plate, Drive Plates & Driven Plates
  Courtesy of SUBARU OF AMERICA, INC.
3. Using ST1 and ST2, remove snap ring.
  ST1 398673600 COMPRESSOR
  
  ST2 498627100 SEAT
  
  Fig 3: Removing Snap Ring Using Special Tool
  Courtesy of SUBARU OF AMERICA, INC.
4. Take out clutch cover, spring retainer, high clutch piston and reverse clutch piston.
  
  Fig 4: Removing Clutch Cover, Spring Retainer, High Clutch Piston & Reverse Clutch Piston
  Courtesy of SUBARU OF AMERICA, INC.
5. Remove seal rings and lip seal from high clutch piston and reverse clutch piston.
  
  Fig 5: Removing Seal Rings & Lip Seal From High Clutch Piston & Reverse Clutch Piston
  Courtesy of SUBARU OF AMERICA, INC.
PLANETARY GEAR, LOW CLUTCH
1. Remove snap ring from the low clutch drum.
  
  Fig 6: Removing Snap Ring From Low Clutch Drum
  Courtesy of SUBARU OF AMERICA, INC.
2. Take out front planetary carrier.
  
  Fig 7: Removing Front Planetary Carrier
  Courtesy of SUBARU OF AMERICA, INC.
3. Take out rear sun gear.
  
  Fig 8: Removing Out Rear Sun Gear
  Courtesy of SUBARU OF AMERICA, INC.
4. Take out rear planetary carrier, washer and thrust needle bearing.
  
  Fig 9: Removing Rear Planetary Carrier, Washer & Thrust Needle Bearing
  Courtesy of SUBARU OF AMERICA, INC.
5. Take out rear internal gear.
  
  Fig 10: Removing Rear Internal Gear
  Courtesy of SUBARU OF AMERICA, INC.
6. Remove the snap ring from the low clutch drum.
  
  Fig 11: Removing Snap Ring From Low Clutch Drum
  Courtesy of SUBARU OF AMERICA, INC.
7. Compress the spring retainer, and remove the snap ring from the low clutch drum, by using ST1 and ST2.
  ST1 498627100 SEAT
  
  ST2 398673600 COMPRESSOR
  
  Fig 12: Removing Snap Ring From Low Clutch Drum Using Special Tool
  Courtesy of SUBARU OF AMERICA, INC.
8. Remove one-way clutch. Refer to AT MAIN CASE .
9. Install the one-way clutch inner race to the low clutch drum, and apply compressed air to remove the low clutch piston.
  
  Fig 13: Installing One-Way Clutch Inner Race To Low Clutch Drum
  Courtesy of SUBARU OF AMERICA, INC.
10. Remove the one-way clutch inner race.
11. Remove the one-way clutch after taking out the snap ring.
  
  Fig 14: Removing One-Way Clutch
  Courtesy of SUBARU OF AMERICA, INC.
12. Remove the needle bearing after taking out the snap ring.
  
  Fig 15: Removing Needle Bearing
  Courtesy of SUBARU OF AMERICA, INC.
2-4 BRAKE
1. Separate 2-4 brake piston and piston retainer.
  
  Fig 16: Removing 2-4 Brake Piston & Piston Retainer
  Courtesy of SUBARU OF AMERICA, INC.
ONE-WAY CLUTCH INNER RACE
1. Remove seal rings.
  
  Fig 17: Removing Seal Rings
  Courtesy of SUBARU OF AMERICA, INC.
2. Using ST, remove needle bearing.
  ST 398527700 PULLER ASSY
ONE-WAY CLUTCH OUTER RACE
1. Remove the one-way clutch after taking out the snap ring.
  
  Fig 18: Removing One-Way Clutch
  Courtesy of SUBARU OF AMERICA, INC.
2. Remove the needle bearing after taking out the snap ring.
  
  Fig 19: Removing Needle Bearing
  Courtesy of SUBARU OF AMERICA, INC.