Transform the stance, capability, and road presence of your Ford Super Duty with this premium 4" Radius Arm Suspension Lift Kit, engineered specifically for 2011–2016 Ford F-250 and F-350 4WD models. Designed to clear up to 35" tires, this system delivers improved ground clearance, enhanced stability, and a bold lifted appearance while maintaining factory-like ride quality. The kit features full-length replacement coil springs, heavy-duty radius arms, a high-strength track bar, and a 3-leaf overload rear block upgrade for a level, commanding stance.
Included are Nitro Series shocks, built with nitrogen-charged, twin-tube technology and 10-stage valving for improved damping, smooth performance, and long-term durability. Whether you’re towing, hauling, or hitting off-road terrain, this 4" system adds strength, stability, and performance your Super Duty deserves. Every component is engineered for straightforward installation, factory compatibility, and long-lasting reliability for everyday use or weekend adventures.
Features:
- Full-length coil springs add lift height while keeping ride quality stable
- Heavy-duty track bar centers axle, boosts strength and limits movement
- High-strength radius arms improve caster and maximize tire clearance
- 3-leaf overload rear block improves stance and levels vehicle height
- Nitro shocks with nitrogen charge enhance control on rough terrain
- Twin-tube shock design provides consistent damping and durability
- 10-stage valving adjusts to speed and terrain for smooth performance
- Black e-coated hardware and components resist corrosion long-term
Specifications:
- Brand: Zone Offroad
- Front Lift Height: 4 inches
- Rear Lift Height: 3 inches
- Front Lift Method: Coil Spring & Radius Arm
- Rear Lift Method: Cast Block with Overload Leaf
- Shock Type: Nitro Series
- Shock Construction: Nitrogen-charged twin-tube
- Shock Valving: 10-stage velocity-sensitive
- Radius Arm Material: High-strength 1/4" steel
- U-Bolts: Heavy-duty black e-coated steel
- Vehicle Type: 4WD Ford F-250 / F-350 2011–2016
Included:
- (2) Front Coil Springs high-strength steel
- (2) Radius Arms 1/4" steel construction
- (1) Track Bar heavy-duty reinforced steel
- (2) Rear Lift Blocks cast steel with overload leaf design
- (4) Rear U-Bolts black e-coated steel
- (4) Nitro Series Shocks nitrogen-charged twin-tube
- (1) Hardware Set
Fitment:
- 2011–2016 Ford F-250 Super Duty 4WD
- 2011–2016 Ford F-350 Super Duty 4WD
Note:
- 3 Year Warranty
- Although extremely rare, front and/or rear drive-line vibration may occur and require drive-line modification
- Factory wheels fit when paired with factory / original equipment tire size
- This kit is not designed for dually models, but may me easily adapted to accommodate your truck. Please contact customer support and they will help you find a solution
- This lift will require replacing your truck's factory rear block to achieve a level stance; total height gained will vary depending on the size of the factory block
- Exhaust modification may be required to clear the front driveshaft on gas models. See installation instructions for more information
- Two-piece rear drive shaft? Add a carrier bearing drop kit to reduce post-lift driveline angles and avoid / eliminate driveshaft vibration