The GPM TRX4034FR is an 11-piece Aluminum Front + Rear Gear Box 2-speed Differential Lock Servo Mount set for the Traxxas TRX4. Designed for precise servo and diff lock support, the kit reduces assembly flex and improves mechanical stability during heavy duty operation. Components are produced from 6061 T6 aluminum for consistent tensile strength and long term durability. The 3D streamline slim cut hollow configuration lowers mass without compromising structural integrity. Aluminium posts are intended to sit under the countersink positioning holes to form a reinforced mounting foundation for the complete assembly.