Designed for installing GT3 bolt pattern steering wheels. These black anodized installation hubs are CNC machined from 6061 billet aluminum. Grade 8 Hardware is provided. They feature a one piece design for easy installation. Step by step illustrated instructions are included. This installation hub has a three bolt mounting pattern and is interchangeable with any standard three bolt steering wheel when used in conjunction with a GT3 horn button. Machined from 6061 Aluminum and designed for GT3 bolt pattern steering wheels. Black Anodized Finish. For use with GM style steering columns and steering wheels. One Piece Billet Design for Easy Installation. Grade 8 Hardware. Compatible with all 3-bolt pattern wheels if used in conjunction with a GT3 horn button.