The Firestone Ride-Rite rear air helper spring kit for 2008–2012 F53 16K–22K GVWR rear applications (not Thor motorhomes) provides adjustable air support to increase load-carrying capacity, stability and ride quality. Air pressure reduces inter-leaf friction and helps limit bottoming out. Kit includes brackets, springs, hardware, air line and inflation valves for independent adjustment. This application requires drilling for installation; typical install time is 1–2 hours and a two-year limited warranty applies.
Firestone Ride-Rite Air Helper Spring Kit Rear 08-12 16K-22K GVWR (Not Thor Motorhomes) (W217602170)