The Firestone 9000 is a sleeve style bag that is typically used on the rear of lighter vehicles that have a separate spring and shock. The Firestone 9000 replaced the Air Lift 58130 tapered sleeve bag. If your kit uses the Air Lift 58130 bags and you need a replacement, you will need to purchase the Air Lift Sleeve Bag Replacement Kit which includes (2) Firestone 9000 bags and hardware. You should not run a Firestone 9000 bag with the Air Lift 58130 bag. The bags are different lengths and mixing brands will cause your pressures to be different from side to side.
Fitting port size and top bolt holes are different than Air Lift's 58130 tapered sleeve bag.
