Tools Required

SA9179NE  Dial Indicator

Fig 1: 2nd Clutch Piston & Spring Washer
Courtesy of GENERAL MOTORS CORP.
1. Inspect the 2nd clutch piston (746) and the clutch piston check valve.

   If the 2nd clutch check valve is missing, stuck or damaged, replace the complete 2nd clutch piston assembly.

   If the 2nd clutch piston spring washer (753) is not staked to the piston, replace the complete 2nd clutch piston assembly.

Fig 2: Inspecting 2nd Clutch Piston & Components
Courtesy of GENERAL MOTORS CORP.
2. Inspect the following components:
   • 2nd clutch piston retaining ring (743)
   • 2nd clutch piston retainer cap (744)
   • 2nd clutch piston spring (745)
Fig 3: Inspecting 2nd Clutch Steel Plates, Fiber Plates & Selective Backing Plate For Damage
Courtesy of GENERAL MOTORS CORP.
3. Inspect the following components for wear, damage, or discoloration:
   • 2nd clutch steel flat plates (742)
   • 2nd clutch fiber plates (741)
   • 2nd clutch selective backing plate (740)
   • 2nd clutch steel wave plates (760)
4. If the 2nd clutch fiber plates (741) are worn or damaged, replace as a set.
5. If the 2nd clutch steel flat plates (742) or the 2nd clutch steel wave plates (760) are worn, damaged, or severely discolored, replace the plates as a set.
6. If the 2nd clutch selective backing plate (740) is worn, damaged, or severely discolored, inspect the 2nd clutch selective backing plate-to-top disc clearance, then replace the selective clutch backing plate as needed.