Fastwayracer FW-CK+BH-F-EG-BL, Adjustable Blue Front Upper Arm Camber Kit + Bushing Kit Light weight,durable performance,direct bolt on design. Forged ball joints is a square-washer design for no-slip performance, reduced bolt distortion, and increased durability. These polyurethane bushings are for quicker response and a more positive feel when compared to other manufacturers' bushings. Adjustable,can be adjustated -4 to +4.