22100 Flywheel Locking Tool for 6.6L Duramax. Tool should slide into opening toward engine with the top of the tool engaging the teeth of the flywheel. Duramax 4500 / 5500 Trucks (Toothed pieces with screws): Remove the rubber inspection cap on the bottom of the transmission.

Brand: Unbranded
Type: Flywheel Locking Tool
Warranty: 1 Year
Number of Pieces: 3
Manufacturer Part Number: 22100
Material: Steel
Compatibility: For 6.6L Duramax engines