Road racers typically set the front tires to toe-out in order to help a car rotate in a corner. Conversely, Buck likes to set up drag cars with 1/8- to 3/16-inch of toe-in to prevent wandering, and to promote straight-line stability. To do so, he relies on a toe-in gauge from Longacre Racing Products. It features two adjustable pointers on each end that are positioned on a distinguishable part of the tire, which in this case was a parting line in the center tread. The gauge was then moved to the back of the tires, and lined up with the same mark to see how much the tires needed to be adjusted to achieve the desired toe-in.