These new STRC aluminum option parts for the Trailrunner/Knightrunner will help improve the durability and precision of the steering assembly and improve the durability around the front gearbox of the Trailrunner/Knightrunner's IFS front end. The Heavy Duty Aluminum Servo Mounting Plate provides a solid platform for the steering servo that will reduce flex and improve the durability of the vehicle's front end, while adding some weight to the front as well. When combined with our Aluminum Steering Bellcranks you can really maximize the power from your steering servo and not have any steering power loss due to flexing of the stock plastic parts. The pair of Aluminum Gearbox Mount provides a solid connection for the entire front transmission/lower suspension assembly to the front end of the chassis.