12 Scale Tweak Tool

12 scale tweak tool used to check chassis tweak and to adjust side springs to balance the car. Slide on rear stands and mount front tweak wheels, lift front chassis by center hole to check if both front wheels rotate at the same time, if not adjust side springs to get equal movement when lifting front wheels. Small weights or magnets need to be glued to the front tweak wheels so they rotate when lifted seen in the closeup picture of the front wheels. Front wheel bearings are also required to press into front wheels.