Thinking of doing a Shelby control arm relocation to get better handling? Our Negative Wedge Kit lets you lower your upper control arms 1¾” instead of the 1” drop you’ll do with a Shelby relocation. This is possible because the wedge changes the mounting angle of the ball joint so it doesn’t bind. While perfect for vintage racing where you must use the factory style upper control arm, this kit is a must for any road race oriented track car or for those who are looking for increased handling in the corners at speed. For a complete handling package, add a Bump Steer Corrector Kit.