Get your semi Ready for the Road Ahead™ with enhanced comfort, stability, and control, with the Dayton Parts Full Tapered Front Parabolic Leaf Spring. Thanks to its layered design, this replacement component is able to provide additional support to the front, center, or rear of a vehicle to absorb shocks and minimize vibrations. Crafted with a flexible body to decrease the chance of broken axles and bolts. FleetPride is your First Click in Heavy Duty®.