Transmission End Play Check: Overview

Tools Required

• J 25022  End Play Fixture Adapter (245 mm and 258 mm). See Special Tools .
• J 34725  End Play Checking Adapter (298 mm). See Special Tools .
• J 43205  End Play Fixture Adapter (300 mm). See Special Tools .
• J 24773-A  Oil Pump Remover. See Special Tools .
• J 8001  Dial Indicator Set
• J 25025-7A  Dial Indicator Mounting Post. See Special Tools .

Fig 1: Identifying Different End Play Fixture Adapters
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Torque converter size is model dependent.
1. Install an end play fixture adapter.
   • Use J 25022  for a 245 mm and 258 mm turbine shaft (1). See Special Tools .
   • Use J 34725  for a 298 mm turbine shaft (2). See Special Tools .
   • Use J 43205  for a 300 mm turbine shaft (3). See Special Tools .
Fig 2: Identifying J 24773-A
Courtesy of GENERAL MOTORS CORP.
2. Install the J 24773-A  . See Special Tools .
Fig 3: Installing J 25025-7A With J 8001
Courtesy of GENERAL MOTORS CORP.
3. Remove an oil pump bolt.
4. Install J 25025-7A  (or a 278 mm or 11 in bolt) and lock nut. See Special Tools .
5. Install J 8001  .
Fig 4: Identifying Special Tools
Courtesy of GENERAL MOTORS CORP.
6. Set the J 8001  to zero.
7. Pull up on J 24773-A  . See Special Tools .

   Proper end play should be 0.13-0.92 mm (0.005-0.036 in).

8. The selective thrust washer (616), which controls the end play, is located between the input housing (621) and the thrust bearing (615) on the oil pump hub.

   If the end play measurement is incorrect, refer to End Play Specifications . Choose a new selective thrust washer (616) based on the original selective washer and the information contained in the table.

   If the dial indicator shows no end play, the selective thrust washer (616) and thrust bearing (615) may have been misassembled.

9. Correct the end play by changing the selective thrust washer (616).