GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 38416-B Harmonic Balancer Remover
    • J 42846 Crankshaft Protector Button
    • J 42847 Flywheel Holding Tool

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1310048  Size: SH

    Important: Ensure the teeth of the flywheel holding tool engage the engine flywheel teeth.

  1. Install the J 42847  (1) to the starter bolt holes.
  2. Tighten
    Tighten the J 42847 bolts to 50 N·m (37 lb ft).


    Object Number: 470799  Size: SH
  3. Remove the crankshaft balancer bolt and washer.

  4. Object Number: 640013  Size: SH
  5. Install the J 42846 onto the end of the crankshaft.

  6. Object Number: 640014  Size: SH
  7. Install the J 38416-B  (2) in order to remove the crankshaft balancer. Place the legs of the J 38416-B into the recesses cast into the backside of the balancer inner hub.
  8. Tighten the center screw of the J 38416-B until the crankshaft balancer is removed from the end of the crankshaft.

  9. Object Number: 640015  Size: SH
  10. Remove the J 38416-B .
  11. Remove the crankshaft balancer.
  12. Remove the J 42846 from the end of the crankshaft.

  13. Object Number: 1310048  Size: SH
  14. Remove the J 42847  (1).