Firestone Ride-Rite Rear Air Helper Spring kit. Air helper springs utilize a pair of convoluted air springs which can be adjusted for changing loads. These air springs are capable of 3200 to 5000 lbs of load leveling capacity. Air helper springs enhance the ride by reducing inter-leaf friction. Remember that air helper springs do not increase the load-carrying capacity of your vehicle. Specifically designed to maximize the safe load carrying capacity, stability, and ride quality of the vehicle. Kit includes brackets, air springs, hardware, air line and separate valves for manual inflation. Minimum tire to frame clearance requirement 7.50". That fits Ford F-150/250 ' 69-' 96 (4x2, 4x4) under 8500 GVW, F-350 ' 63-' 03, F-250 ' 84-' 08 (4x2) over 8500 GVW, F-350 ' 70-' 10 (4x2, 4x4) with 7.5" minimum tire to frame clearance.
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