Firestone Ride Rite Air Springs Rear Kit. They maximize the vehicle's safe load-carrying capacity stability ride quality and brake effectiveness. Does not feature No-Drill system. Easily installing in 1-2 hours. Supports up to 5000 lbs. per set. For use with Ford Motorhomes F53 (16000 to 22000 GVWR). Features of Firestone 2170 Ride Rite Air Springs Rear Kit Ride-Rite Air Springs - Rear Kit Maximizes the vehicle's safe load-carrying capacity stability ride quality and brake effectiveness Supports up to 5000 lbs. per set Installs quickly Package Contents: Firestone 2170 Ride Rite Air Springs Rear Kit Firestone 2170: Ride Rite Air Springs Rear Kit