JOES Precision Billet Bump Steer Gauge has a rigid design to give you exact results every time. The digital indicator does the math for you and zeros quickly. Made from billet aircraft aluminum, the hub plate is designed to work with all stock car hubs - one plate fits 5x5, wide 5 and snap cap. Precision laser etching gives you a graph that is more accurate than cheap stickers used by the competition. The JOES design allows plenty of room for the jack and the roller arm is adjustable allowing the gauge to clear the hub. The JOES unit breaks down for easy storage saving you room in your shop or trailer.