3rd Clutch Disassemble

Tools Required

• J 23327  Spring Compressor
• J 28585  Snap Ring Remover
• J 45124  Removable Bridge. See Special Tools .

Fig 1: Removing 3rd Clutch Backing Plate Retaining Ring Using J 28585
Courtesy of GENERAL MOTORS CORP.
1. Using J 28585  , remove the 3rd clutch, backing plate retaining ring (810) from the 3rd clutch assembly (831).
Fig 2: Exploded View Of 3rd Clutch Housing
Courtesy of GENERAL MOTORS CORP.
2. Remove the following components from the 3rd clutch housing (821):
   • 3rd clutch selective backing plate (811)
   • 3rd clutch fiber plates (812)
   • 3rd clutch steel wave plates (830)
   • 3rd clutch steel flat plates (813)
   • 3rd clutch spring plate (817)
Fig 3: 3rd Clutch Disassemble, J 45124, J 23327, J 21420-2, Clutch Piston Return Spring & Clutch Spring Retainer Cap Retaining Ring
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Position the legs of the J 45124  on the spring retainer cap only where the spring is in contact with the cap. See Special Tools .
3. Using the bridge and legs of the J 45124  (2) with the forcing screw of the J 23327  (1) and J 21420-2 (3) plate of the J 23327  compress the clutch piston return spring until the groove for the clutch spring retainer cap retaining ring is accessible. See Special Tools .
   • Adjust the legs of the J 45124  to have full contact with the clutch piston return spring retainer cap. See Special Tools .
   • Do not place the legs on the spring retainer cap that is not supported by the spring.
   • Ensure the legs remain in position where the spring retainer cap is in contact with the spring.
Fig 4: Removing 3rd Clutch Piston Retaining Ring Using Pliers
Courtesy of GENERAL MOTORS CORP.
4. Using snap ring pliers, remove the 3rd clutch piston retaining ring (814).
Fig 5: 3rd Clutch Piston & Components Removed
Courtesy of GENERAL MOTORS CORP.
5. Remove the tools.
6. Remove the 3rd clutch piston retaining ring (814).
7. Remove the 3rd clutch piston spring cap (815).
8. Remove the 3rd clutch piston return spring (816).
Fig 6: Applying Compressed Air To 3rd Clutch Piston Fluid Apply Port
Courtesy of GENERAL MOTORS CORP.
9. Install the 3rd clutch housing (821) onto the 3rd clutch shaft (823).
CAUTION: When you use compressed air in order to clear fluid passages and to dry parts, always aim the air pressure away from face and eyes. Always wear adequate eye protection in order to avoid injury from dirt and debris that may adhere to parts.
10. Apply compressed air to the 3rd clutch piston fluid apply port located in the 3rd clutch shaft in order to remove the piston.
Fig 7: 3rd Clutch Piston & Outer/Inner O-Ring Seal Removed
Courtesy of GENERAL MOTORS CORP.
11. Remove the following components from the 3rd clutch piston (818):
    • 3rd clutch piston, outer O-ring seal (819)
    • 3rd clutch piston, inner O-ring seal (820)