S550-Series Ford Shelby GT500 Mustang Front Lower Control Arms (FLCA) provide roll center, camber, and track width adjustment and allow for full articulation with the proper ball joint angle. The main arm is slotted to allow the use of pinch bolts, and our rotating clamps on SPL Parts' exclusive Double Adjuster lock down camber and track width settings. No more jam nuts!! Long gone are the days of fumbling with multiple wrenches to tighten jam nuts in place while trying to keep your bearings oriented correctly. Our Double Adjuster is machined from 4130 Chromoly, gun drilled to reduce weight, then electroless nickel plated for corrosion resistance. Blue Anodized Titanium hardware shaves even more unsprung weight from the arms without compromising strength. Stainless Steel spacers are provided to correct roll center for lowered vehicles. The use of FK Rod Ends and High Misalignment Spherical Bearings eliminates the flex and binding found in the OEM control arms, while allowing smooth articulation. Sold as a pair. Made in the USA! SPL Shelby GT500 Front Adjustable Control Arms Fits 2020 - 2023 Shelby GT500, 2020 Shelby GT350R, and S550 Mustangs using GT500 knuckles.