GM Service Manual Online
For 1990-2009 cars only

Tools Required

J-43966-1 Connecting Rod Guides


    Object Number: 412430  Size: SH
  1. Rotate the crankshaft to a position where the connecting rod bolts are the most accessible.
  2. Mark the connecting rod and cap with the cylinder position. Also mark their orientation. This will ensure the caps and connecting rods are re-assembled properly.
  3. Remove any ridge at the top of the cylinder bore to avoid damage to the piston ring lands.
  4. Remove the connecting rod bolts.
  5. Remove the connecting rod cap.

  6. Object Number: 412431  Size: SH
  7. Install J-43966-1 on the connecting rod bolts before removing the piston and connecting rod assembly.
  8. Remove the piston and connecting rod assembly.

Tools Required

J-43966-1 /J 41742 Connecting Rod Guides


    Object Number: 412430  Size: SH
  1. Rotate the crankshaft to a position where the connecting rod bolts are the most accessible.
  2. Mark the connecting rod and cap with the cylinder position. Also mark their orientation. This will ensure the caps and connecting rods are re-assembled properly.
  3. Remove any ridge at the top of the cylinder bore to avoid damage to the piston ring lands.
  4. Remove the connecting rod bolts.
  5. Remove the connecting rod cap.

  6. Object Number: 412431  Size: SH
  7. Install J-43966-1 /J 41742 on the connecting rod bolts before removing the piston and connecting rod assembly.
  8. Remove the piston and connecting rod assembly.