This anti-sway bar is designed to minimize body roll when cornering, resulting in improved vehicle control and handling. Sway bars also improve chassis balance by reducing under steer without affecting ride quality. Coil spring applications only!. Some modifications must be done if truck is at stock height stage 1 handling kit stage 2 handling kit 63-72 front gas shocks 63-72 front lowered coil springs 63-72 rear lowered coil springs