Features 1Applicable Model: The flywheel locking tool is replacement for Duramax 6.6L engines with replacement for Allison automatic transmissions, replacement for Duramax 2500 3500 4500 5500 Trucks. 2High Accuracy Design: Our flywheel locking tool is designed to accurately secure the flywheel position, ensuring stability and reliability during replacement or adjustment. 3Superior Material: Made of high strength metal, this flywheel locking tool set is sturdy and robust, resistant to wear, tear and erosion, capable of handling high loads and long term use. 4Convenient Equipment: Equipped with 36mm 3/4in socket, the flywheel locking holder simplifies the repair and replacement of the flywheel, meeting a variety of maintenance needs. 5Enhance Flywheel Performance: Using this flywheel locking water pump holder tool, it will be easier for you to manage the performance of your flywheel, enhancing driving stability. Specification Item Type: Flywheel Locking Tool Material: Metal Fitment: Replacement for Duramax 6.6L engines with replacement for Allison automatic transmissions Replacement for Duramax 2500 / 3500/ 4500 / 5500 Trucks Package List 1 x Flywheel Locking Tool Kit (4Pcs)