GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 TopKick C-Series (Conventional) C6/C7/C8 🢒 Engine 🢒 Engine Mechanical - 6.6L 🢒 Piston and Connecting Rod Disassemble

Tools Required

J 43654 Piston Pin Retainer Remover/Installer


    Object Number: 663138 Size: SH
  1. Mark orientation of the piston to the connecting rod.

    2. Object Number: 637689 Size: SH
  2. Remove the piston rings using a piston ring expander.

    3. Object Number: 663781 Size: SH
  3. Remove the connecting rod bearing inserts.

    4. Object Number: 637736 Size: SH
  4. Use J 43654 to remove the piston pin retainers.
  5. Remove the piston pin. The pin is a full-floating style and should slide from the piston.
  6. Remove the piston from the connecting rod.