Lisle 6.6L Duramax Flywheel Locking Tool

• Locks flywheel in place when removing harmonic balancer
  on 6.6L Duramax Engines with Allison Automatic Transmissions

• Saves time by locking the flywheel at the transmission instead of
  having to remove the starter for water pump replacement

• On 2500 and 3500 pickups, remove metal spring-loaded inspection
  plate on the bottom of the transmission

• Tool should slide into opening toward engine with the top of the
  tool engaging the teeth of the flywheel

• On 4500 and 5500 trucks, remove the rubber inspection cap on the
  bottom of the transmission

• Insert the tool at the front of the opening to engage the flywheel
  and hand tighten bolt to hold tool in place

• Use 36mm 12-point socket with 3/4 square drive to remove
  harmonic balancer bolt and retorque on installation

Demonstration: