GM Service Manual Online
For 1990-2009 cars only

    Object Number: 769027  Size: SH
  1. Remove the crankshaft bearing bridge bolts.

  2. Object Number: 769028  Size: SH
  3. Remove the main bearing cap bolts.

  4. Object Number: 769029  Size: SH
  5. Remove the crankshaft bearing bridge.

  6. Object Number: 769030  Size: SH
  7. Remove the first main bearing cap.
  8. Remove the first main bearing cap lower insert.
  9. Remove the second main bearing cap.
  10. Remove the second main bearing cap lower insert.
  11. Remove the third main bearing cap.
  12. Remove the third main bearing cap lower insert.
  13. Perform the following steps to remove the fourth main bearing cap:
  14. 10.1. Insert a bolt into the main bearing cap oil pan threaded hole or pry the crankshaft and drain the bearing cap from the block using a pry bar at each end of the flywheel.
    10.2. Use a pry bar to remove the cap from the block.
    10.3. Remove the fourth main bearing cap.
    10.4. Remove the fourth main bearing cap lower insert.
  15. Carefully remove the crankshaft.
  16. Remove the main bearing upper inserts from the block.

  17. Object Number: 797538  Size: SH
  18. Remove the crankshaft position sensor bolt.
  19. Remove the crankshaft position sensor.

  20. Object Number: 217377  Size: SH
  21. Remove the crankshaft reluctor ring bolts.
  22. Remove the crankshaft reluctor ring.