Ford Mustang S550 Rear upper control arms (RUCA) are used to adjust camber, these arms are made from high strength alloy steel, and feature a double adjuster allowing for full adjustment without removing the arm. the arm also has a locking collar, meaning 1 less jam nut is needed. this will reduce the chance of loosening under hard abuse.
the product includes 2 fully assembled arms (1 Left and 1 Right)