Unleash the full potential of your RC car with the 4X2 to 4X4 Transmission Conversion Upgrade Set: BOOST BOX from Milton Hobbies, new to our outstanding collection. Designed to elevate your racing experience, this kit transforms your RC car into a high-performance machine. At Milton Hobbies, we are committed to providing top-notch parts that keep your passion alive and your vehicle performing at its best. Dive into superior control and traction with the BOOST BOX and feel the thrill of enhanced capability. Join the ranks of satisfied hobbyists who trust Milton Hobbies for quality and innovation.