Grant Billet Style Installation Kits are an optional styling upgrade. The Billet Style Kits have Grant's five-hole mounting pattern and can only be used to install Grant Signature Series Steering Wheels. When these are used, it eliminates the need for the GT Styling Sleeve part number 4000 and you also do not need a standard installation kit either. The cool thing about the Billet Kits is they are designed to put the wheel back in as close to the stock position as possible. You cannot use this kit to install a Classic/Challenger/Performance Series Wheel (3 Bolt Pattern wheels) or to mount the #2001 Vehicle Security System.