ST Racing Concepts ST3654-17B CNC Machined Aluminum 17mm Hex Conversion Kit for Traxxas Slash, Stampede, Rustler and Bandit (Blue) Our conversion kit does it right by including a specific set of front steel axles that allows proper installation of the front 17mm hex adapters Each piece of 17mm hex adapters are machined out of high-quality aluminum Unique set-screw behind drive pin design, youll never have to worry about loosing a drive pin