GM Service Manual Online
For 1990-2009 cars only

    Object Number: 769025  Size: SH
  1. Rotate the crankshaft until the rod bearing cap bolts are accessible.
  2. Remove the rod bearing cap bolts.
  3. Remove the rod bearing cap.
  4. Remove the lower rod bearing.

  5. Object Number: 217374  Size: SH

    Important: Re-install the rod cap to the rod when the piston is removed from the engine block. The rod and cap are not interchangeable. The mating surfaces must be protected from damage.

  6. Use a block of wood or use a soft material to drive each piston out of the block.
  7. Remove the upper rod bearing.