ReadyLIFT Suspension is now offering our first 4" Coil Spring Lift Kit fitting 2017-2022 Ford Super Duty F250/F350 4WD Power Stroke trucks. The 49-27420 includes front and rear Falcon 1.1 Monotube series performance shocks with our venerable front track bar relocation bracket radius arm drop brackets and rear fabricated blocks. This gives Super Duty owners an excellent alternative for lifting their trucks to fit larger tires. The coil spring system allows for increased tire sizes and widths along with providing improved ground clearance on a head-turning stance! Many consider this lift height the sweet spot for Super Duty driving dynamics and maximum tire size while maintaining everyday usefulness. This optimum lift height allows for up to 37" tall tires. The coil spring kit delivers a great ride and handling performance! The key ingredients to improving your ride are the new specially engineered coil springs teamed with Falcon shocks and a track bar relocation! This combination is more than just a lift kit this is a performance and ride-enhancing kit that will really delight consumers with how well it rides and performs both on and off-road. The ReadyLIFT 4" Coil Spring lift kit system for 2017-2023 Ford Super Duty trucks also includes model-specific brake line extension brackets our time-tested bump-stop extension brackets and new front sway bar frame mount extension brackets to keep the factory sway bar in the proper position. If you want tough looks and a smooth but controlled ride then you want the new Super Duty 4" Coil Spring Suspension Kit System.