Full adjustable rear arm kit for Lexus RC, 2013+ GS and 2013+ IS models. Compatible only with True rear coilovers. RUCA are tig welded DOM steel. All other arms are lightweight billet aluminum. Forged double adjusters. Low torque spherical bearings. Includes: Rear Lower Control arms with Sway Bar End Links, Upper Traction Rods, Lower Traction Rods, Rear Upper Control arms, and Toe Rods with eccentric bolt lock outs **All arms are also available separately if something in this kit is not needed or not compatible with your desired setup.