Ensure your semi is Ready for the Road Ahead with a soft and smooth ride, with the Goodyear 2B12-425/4363 Double Convoluted Air Spring for Trailer Axles. Thanks to its bellow-like bag design, this replacement air spring is able to lift or lower the ride height to optimize comfort, handling, or other features. Crafted with tight seals to minimize air leakage and deliver superb suspension. 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 .