JOYSOG 2 Speed Transmission Gearbox with Base Plate for Traxxas 1/18 TRX4M RC Car Metal Wave Box Upgrade Parts

["This Metal 2 Speed Gearbox Only fit for Traxxas 1/18 TRX4M RC car.","2-speed gearbox with high and low gear ratio options, this transmission provides precise control over your RC car's speed and direction.","It providing smooth transmission and low noise.","Made of Plastic + Metal material, our gearbox ensures both durability and safety during operation.","Exquisite workmanship, smooth and durable, sand-proof and dust-proof."]