Firestone Ride-Rite Air Helper Spring Kit Rear GM & F350/F450 Cab Chassis (W217602176)

Firestone's most popular and comprehensive air helper spring line, Ride-Rite kits can be installed on most light trucks, motor-homes, RVs, SUVs and vans. Each application is specifically designed to maximize the vehicle's safe load-carrying capacity, stability, ride quality and brake effectiveness. Firestone Ride-Rite air helper springs provide load support through the use of air pressure that can be adjusted for changing loads. They enhance the ride by reducing inter-leaf friction. The system features individual inflation valves that allow for separate side-to-side or front-to-rear adjustment, which helps keep the vehicle level when carrying off-center loads and maintains ride quality under differing load conditions. Most Ride-Rite kits are no-drill systems, designed to use the vehicle's factory holes and mount between its frame and suspension. All the components are included in the kit for an easy installation that typically takes 1 to 2 hours. Kits come with a two-year limited warranty. GM/F350/450 C/C Fitment: Chevrolet Silverado 3500 HD LT 2011 to 2012 Chevrolet Silverado 3500 HD LTZ 2011 to 2012 Chevrolet Silverado 3500 HD WT 2011 to 2012 Ford F-350 Super Duty FX4 2008 Ford F-350 Super Duty Harley-Davidson Edition 2004 to 2008 Ford F-350 Super Duty King Ranch 2003 to 2008 Ford F-350 Super Duty King Ranch 2017 to 2020 Ford F-350 Super Duty Lariat 1999 to 2008 Ford F-350 Super Duty Lariat 2017 to 2020 Ford F-350 Super Duty Limited 2018 to 2020 Ford F-350 Super Duty Platinum 2017 to 2020 Ford F-350 Super Duty XL 1999 to 2008 Ford F-350 Super Duty XL 2017 to 2020 Ford F-350 Super Duty XLT 1999 to 2008 Ford F-350 Super Duty XLT 2017 to 2020 GMC Sierra 3500 HD SLE 2011 to 2012 GMC Sierra 3500 HD SLT 2011 to 2012 GMC Sierra 3500 HD WT 2011 to 2012