Eliminate unwanted wheel hop, improve traction and decrease body-to-rear end flex with our adjustable upper control arms and adjust your driveshaft pinion angle without removing a single bolt. Each set includes a pair of precision welded upper control arms, all necessary hardware and a durable powder coated finish. Features Include: Fits 1979-04 Mustang Eliminates wheel hop Improved traction Permits pinion angle adjustment Durable powder coated finish Precision welded Includes all necessary hardware for installation