F109N 4 inch Lift Kit with Radius Arms and 2 inch Rear Lift Block Kit for 3 Leaf Main (Nitro Series)

• 4” Front Lift with High-Strength Coil Springs for a comfortable, controlled ride
• 2” Rear Lift Blocks & U-Bolts designed for trucks with 3-leaf main factory spring packs
• Nitro Series Shocks for smooth, controlled ride quality and enhanced damping performance
• Heavy-Duty Radius Arms for improved strength and proper caster alignment
• 5-year/60,000-mile drivetrain warranty & limited lifetime warranty

Take Your Super Duty Higher with Strength and Stability

Transform your 2017-2019 Ford F-250/F-350 Super Duty Diesel with the Zone Offroad 4” Lift Kit, featuring heavy-duty radius arms and Nitro Series shocks. This premium suspension system is designed to deliver superior strength, improved ride comfort, and enhanced off-road capability, all while maintaining a level stance. With a 4” front lift supported by high-strength coil springs and a 2” rear lift, your truck gains ample clearance for up to 37” tires, giving it an aggressive stance and improved ground clearance. The reinforced radius arms ensure better handling and suspension alignment, while the Nitro Series shocks provide responsive damping for a smoother ride on rough terrain or highway roads.

Built Tough for Performance and Durability

This Zone Offroad 4” Lift Kit is engineered for longevity and easy installation, featuring high-quality coil springs, heavy-duty radius arms, and precision steering corrections for a smooth, controlled driving experience. The forged pitman arm and track bar relocation bracket optimize steering angles, keeping your front axle centered and reducing bump steer. Additional suspension components such as bump stop extensions, sway bar relocation brackets, and brake line relocation brackets help maintain factory-like handling characteristics. The Nitro Series shocks, with their twin-tube nitrogen-charged design and 10-stage velocity-sensitive valving, deliver consistent, controlled damping for an improved ride on and off the road. Backed by Factory Protection Plus, including a 5-year, 60,000-mile drivetrain warranty and a limited lifetime warranty, this lift kit is built for those who demand uncompromising strength and performance.

(Trimming may be required)

• 37 x 12.5 with 20 x 9 and 4.5 in. Backspace
• 37 x 12.5 with 18 x 9 and 4.5 in. Backspace
• 37 x 12.5 with 17 x 9 and 4.5 in. Backspace