The Firestone 1/4" 9000 Style Air Bag is a tapered sleeve-style bag that is perfect on the rear of lighter vehicles that have a separate spring and shock. With a minimum height of 4.5 inches and a maximum height of 12 inches, the Firestone 9000 has an impressive 7.5 inches of stroke. The Firestone 9000 only has a 5-inch diameter, so its ideal for vehicles with limited installation space. The Firestone 1/4" 9000 Style Air Bag features a single 1/4" port and two top mounting holes that are 2.75” apart from center to center.
Firestone air springs feature a limited lifetime warranty. They're covered for life as long as you install them on just one vehicle and provided you do not buy or sell the vehicle while the springs are installed. You really can't beat this! Install them on your truck and you've got a set for life! (Does not cover rubbing!)