Outfit your semi truck to be Ready for the Road Ahead™ with improved suspension performance, with the Dayton Parts 46-1/8" Trailer High Arch 3-Leaf Spring. Due to its direct connection to the suspension system, this replacement component is able to dampen vibrations and shocks while traveling across bumpy terrain. Engineered with a balanced design to help distribute load weight across axles and wheels. FleetPride is your First Click in Heavy Duty®.