Ford Excursion owners, if you're dealing with sagging rear ends or poor handling when loaded up, this Firestone Ride-Rite kit is the solution you've been looking for! These air helper springs mount between your frame and suspension to provide that extra support when you're carrying heavy loads or towing. They level your vehicle both front-to-rear and side-to-side, eliminating that annoying sag and improving stability significantly. The adjustability range is 5-100 PSI, so you can fine-tune the pressure exactly for your load. The heavy-duty convoluted air springs can handle between 3,200-5,000 pounds per set - serious capacity for serious jobs. The kit comes complete with everything you need: air springs, air lines, brackets, inflation valves, fittings, and detailed instructions. Firestone tests each air spring before shipping and they're rated for over 1 million cycles, so you know they're built to last. Installation is straightforward for anyone with basic mechanical skills. Whether you're hauling camping gear, towing a trailer, or just want better ride quality when loaded, these helper springs make a huge difference in how your Excursion handles and rides. The ISO certification gives you confidence in the quality, and Firestone's reputation in the industry is rock solid. One of the best upgrades you can make if you actually use your truck for truck stuff!