The Dayton Parts Front Leaf Spring is a high-quality replacement part designed to provide superior performance and durability for your vehicle. Made from a single steel alloy with a full taper design, this leaf spring is capable of supporting up to 9,700 lbs, making it ideal for heavy duty applications. With a spring width of 4.00" and a number of leaves of 3, this spring is engineered to provide maximum support and stability. The spring pack thickness of 3-5/16" ensures that your vehicle is able to handle even the toughest road conditions. With a spring capacity at pad of 8,750 lbs, this designed to be used in the leaf spring of Kenworth vehicles. FleetPride is your First Click in Heavy Duty®.