The Firestone Coil-Rite rear air helper spring kit for 1997–2002 Ford Expedition fits inside the rear coil springs to add adjustable load support and improve ride control. The kit includes air helper springs, supports, hardware, air line and inflation valves and installs without drilling. Adjustable pressure lets owners maintain level stance, enhance braking effectiveness and reduce bottoming when carrying heavy loads.
Firestone Coil-Rite Air Helper Spring Kit Rear 97-02 Ford Expedition (W237604134)