The ContiTech Aluminum Air Spring 64690 1R14-170 ensures you are Ready for the Road Ahead , with the accomplishment of diligent and low natural frequency between tare and full load. This ensures effective cargo protection, even on poor road surfaces, excellent comfort and health protection for the truck driver, and safe driving conditions. These air springs also offer the capability to lower or raise the truck's body height to match a ramp's elevation or to set up a suitable platform. FleetPride knows you need quality suspension and steering parts to reduce wear and tear and ultimately, downtime. Whether you need cab, truck or trailer air springs, we have the heavy duty air bags you need for a quiet, stable ride. FleetPride is your First Click in Heavy Duty .