If your're looking for the maximum amount of drop for your 2011-2019 GMC/Chevy 2500 HD these are the shackles for you. They do interfere with the pinch weld under the bed, so modifications will be needed for installation. If you're not looking to modify the pinch weld on your 2011-2019 GMC/Chevy 2500 HD then take a look at our 1.4" drop shackles as they do not require any modifications to the vehicle for installation. Install instructions are included.
