SPC Performance Toyota 4RUNNER & FJ UCA (PAIR)

SPC Performance is known for making well-built suspension components that help you get the most out of your vehicle, especially when you're lifting it or pushing it hard. These adjustable upper control arms are a prime example, designed specifically to correct alignment angles and improve the way your 4Runner, FJ Cruiser, or GX handles after a lift kit is installed.

When you lift a truck, the factory caster and camber angles get thrown off, which can lead to vague steering and uneven tire wear. These SPC arms have built-in positive caster to help bring those angles back into spec, restoring that confident, planted feel. They also offer a significant adjustment range for both camber and caster, allowing you to dial in your alignment precisely. The arms themselves are made from forged steel for serious strength and feature an updated ball joint design with a larger stud and E-Nickel coating for corrosion resistance. This ball joint offers a full 80 degrees of articulation and is maintenance-free, keeping grease in and dirt out. Plus, the arms are shaped to provide better clearance around the spring bucket, a common issue with other aftermarket arms.

Beyond the ball joint, these control arms use SPC's xAxis™ sealed flex joints. These are housed in bonded rubber bushings, which help absorb road vibrations and noise for a more comfortable ride, while still allowing for extended suspension travel. The combination of the adjustable ball joint and the flex joint means you can position your tires correctly in the wheel wells, often allowing for larger 33-inch tires without needing to trim your fenders or modify the frame. This pair of control arms is sold as a set for one axle, and they are designed to work with the factory lower arm adjusters to maximize tire placement. If you're looking to correct your alignment after a lift and get the best possible tire clearance, these are a solid option.