4th and 5th/Reverse Clutch Assembly Disassemble

Tools Required

• J 23327  Spring Compressor
• J 45124  Removable Bridge. See Special Tools .

Fig 1: Exploded View Of Clutch Assembly
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: The disassemble for either the 4th clutch assembly or the 5th/reverse clutch assembly is the same.
1. Using a screw driver, remove the clutch backing plate retaining ring (608) or (624).
2. Remove the clutch selective backing plate (609) or (625).
3. Remove the clutch steel and fiber plates (610), (611), and (650), or (626),(627), and (651).
4. Remove the clutch spring plate (615) or (631).
Fig 2: J 45124, J 23327, Clutch Piston Return Spring, Retaining Ring & Return Spring Retainer Cap
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 .
5. Using the bridge and legs of the J 45124  (3) with the forcing screw of the J 23327  (2) and J 21420-2 (1) plate of the J 23327  , compress the clutch piston return spring (614) or (630) until the clutch spring retainer cap retaining ring (612) or (628) is accessible. See Special Tools .
   • Adjust the legs of the J 45124  to have full contact with the clutch piston return spring retainer cap (613) or (629). See Special Tools .
   • Ensure the legs remain in position where the spring retainer cap is in contact with the spring.
Fig 3: Clutch Piston Return Spring & Components Removed
Courtesy of GENERAL MOTORS CORP.
6. Remove the clutch piston return spring retaining ring (612) or (628). Remove the tools.
7. Remove the clutch piston return spring cap (613) or (629), and remove the clutch piston return spring (614) or (630).
Fig 4: Applying Compressed Air Into Appropriate Fluid Passage Hole
Courtesy of GENERAL MOTORS CORP.
8. If the 4th and 5th/reverse clutch fluid passage O-ring seals (604) were removed, install the old seals.
9. Install the clutch housing assembly (643) back onto the mainshaft assembly. Apply compressed air into the appropriate fluid passage hole of the mainshaft assembly in order to remove either clutch piston assembly (616) or (632).
10. Remove the inner and outer O-ring seals from the clutch pistons.