Prepare your truck or trailer to be Ready for the Road Ahead , with the Dayton Parts Two-Stage Rear 5-Leaf Spring that provides enhanced comfort, stability, and control. Due to its layered design, this replacement component is the ideal choice to provide additional support to the front, center, or rear of a vehicle to absorb shocks and minimize vibrations. Engineered with a flexible body to decrease the chance of broken axles and bolts. FleetPride is your First Click in Heavy Duty .