Product Details: Prepare your truck or trailer to be Ready for the Road Ahead™, with the Dayton Parts Rear 4-Leaf Spring that provides enhanced comfort, stability, and control. This replacement component provides additional support to the front, center, or rear of a vehicle, absorbing shocks and minimizing vibrations. Manufactured with a flexible body to prevent broken axles and bolts. FleetPride is your First Click in Heavy Duty®.