Fits: 2001 thru 2019 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ/LMM/LML/L5P Duramax Diesel

Use this part to hold the Allison transmission flywheel in place while performing repairs on your Duramax. This is commonly used to lock the engine from rotating to assist in removal of the harmonic damper bolt.

Includes:

• (1) Flywheel lock tool