Traction BarThe Lakewood 21606 traction bar is designed for street or competition use at the drag strip on your GM F or X Body vehicle. These traction bars reduce wheel hop and dramatically increase your traction by strengthening the rear suspension. The included rubber snubbers provide better ride quality. This unit should not be used in conjunction with a rear stabilizer bar. To avoid spring damage, this unit is not recommended for use with monoleaf springs.