Prepare your truck or trailer to be Ready for the Road Ahead , with the Dayton Parts Full Tapered Front Parabolic 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. Engineered with a flexible body to decrease the chance of broken axles and bolts. FleetPride is your First Click in Heavy Duty .