Upgrade your Freightliner FL70 or FL80 with our top-quality air springs and level valves at 4 State Trucks. We have a range of aftermarket suspension parts, including height control and linkage kits, that improve cab suspension and weight distribution. Whether you need to handle heavy loads or just want a smoother ride, our parts provide the support you need. We focus on quality to ensure your Freightliner FL Series runs at its best. Boost your truck's capacity and performance, and enjoy a better driving experience with our affordable and reliable parts from 4 State Trucks!