FJ’s and 4Runner’srun out of factory adjustment when you install lift kits. With our patent pending design, these4Runner SPC upper control arms provide an additional + or – 2 degree of camber and 0 to +4 degree of caster change. Built with an OE-style ball joint and bushings with zerk fittings, this arm is designed to correct alignment angles while maintaining factory ride quality. The hybrid tubular and forged steel design is tough enough to race on or off-road. These remove and replace arms are available in pairs for lifted and off-road applications.