Leaf Spring Leaf Spring; Height 4 in.; Incl. Bushings; SPECIFICATIONS: Lift/Drop Height: 4 in. WARNING CA Proposition 65: Yes WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. FEATURES: Pre Stressed A Compliant Ride And Desired Ride Height Progressive multi-leaf springs provide smooth ride characteristics for solid axle vehicles. About Pro Comp USA: Since 1992 Pro Comp USA has been manufacturing high-quality durable products for on and off road enthusiasts including tires wheels suspensions shocks and more. Suspension systems were our original foundation and they continue to be one of our strongest departments as we develop innovative new suspensions to this day. Starting in 1998 we took on tires and have since become one of the top tire-manufacturing contenders in the aftermarket industry. This has been supported by the release of our Pro Comp wheels in 2001 designed to be the strongest steel and cast wheels in the market. No matter what the product we offer a shopping experience that is fast and simple as we continue to strive for unmatched customer service each and every day. Why Choose Pro Comp USA? Pro Comp USA chooses to focus on suspensions wheels and tires for a simple effective and affordable shopping experience. Featuring a no-hassle user-friendly approach to finding the right parts for your vehicle Pro Comp USA sticks to the basics to deliver what you need as quickly and affordably as possible.