This design is based upon knowledge accumulated from years of racing experience, and is ideal for both street and race applications. Each Rear Camber Kit is is made from forged alloy steel and aircraft quality 7075 aluminum. Each Rear Camber Kit features hard urethane bushings which are designed to pivot smoothly and remove suspension slop without the harsh side effects of using actual spherical bearings. The bushing housings are offset to allow for the additional clearance needed when running smaller wheels. The Skunk2 Rear Camber Kit is sold as a set and replaces the OEM rear upper control arms. Ideal for lowered vehicles, they will maximize the life of your tires, provide a larger contact patch on rear tires, and are perfect for AutoCross.