This rear 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. fits trucks with rear trailing arm and coil springs only!. Some modifications must be done if truck is at stock height. This sway bar can be used with stage 1 handling kit or stage 2 handling kit (front gas shocks, front lowered coil springs, and rear lowered coil springs).