When running lift spacer cups or lifted coil springs in the front of the car, it is highly recommended that you utilize extended front control arms. UCL front arms are designed to give you extra clearance under the arm. This will help with suspension travel and keep your ball joint angle proper. You can also run more lift from the front end using these arms. All parts are constructed from thick over-sized steel and finished in a durable black powder coat finish for years of use. Lifetime warranty against manufacturer defects.