Description: This pressure calibration kit is a must - have for 2001 - 2010 GMC 2500HD/3500HD trucks with a 6.6L Duramax engine and 1000 - 2000 Allison Trans. It's a great addition when building a 5 or 6 - speed Allison 1000 transmission, especially for heavy - load and high - horsepower trucks. The kit increases line pressure, improving clutch holding ability and making gear shifts tighter. Part Number: 128041000. Features: Increases line pressure, improves clutch holding, and promotes tighter shifts. For installation details, click here.

Using this Duramax pressure calibration kit is straightforward. First, make sure your truck is turned off and cooled down. Locate the transmission area where the kit needs to be installed. Carefully follow the included instructions to install the kit parts. During installation, handle the components gently to avoid any damage. Once installed, start your truck and check for any abnormal noises or leaks. When it comes to maintenance, regularly check the line pressure to ensure the kit is working properly. If you notice any decrease in performance, like slipping gears, it might be time to inspect the kit. Keep the kit clean and free from dirt and debris to extend its lifespan. And always refer back to the installation guide if you have any questions or need to reinstall the kit in the future.