GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 8001 Dial Indicator Set
    • J 24773-A Oil Pump Remover
    • J 25022 End Play Fixture Adapter
    • J 25025-7A Dial Indicator Post
    • J 34725 End Play Checking Adapter
    • J 43205 End Play Fixture Adapter (300 mm)

    Object Number: 327528  Size: SH

    Note: Torque converter size is model dependent.

  1. Install an end play fixture adapter.
  2. • Use J 25022 adapter for a 245 mm and 258 mm turbine shaft (1).
    • Use J 34725 checking adapter for a 298 mm turbine shaft (2).
    • Use J 43205 fixture adapter (300 mm) for a 300 mm turbine shaft (3).

    Object Number: 327530  Size: SH
  3. Install the J 24773-A pump remover .

  4. Object Number: 327533  Size: SH
  5. Remove an oil pump bolt.
  6. Install J 25025-7A dial indicator post (or a 278 mm or 11 in bolt) and lock nut.
  7. Install J 8001 dial indicator set .

  8. Object Number: 1552917  Size: SH
  9. Set the J 8001 dial indicator set to zero.
  10. Pull up on J 24773-A pump remover .
  11. Proper end play should be 0.13-0.92 mm (0.005-0.036 in).

  12. The selective washer (616), which controls the end play, is located between the input housing (621) and the thrust bearing (615) on the oil pump hub.
  13. If the end play measurement is incorrect, refer to the table End Play Specifications. Choose a new selective 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 washer (616) and thrust bearing (615) may have been misassembled.

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