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Level Up Your Super Duty Stance: Give your fifth-generation Ford F-250/F-350 Super Duty the aggressive lift it deserves with Rough Country's 4.5" Suspension Lift Kit. This premium kit eliminates factory rake, delivers front-to-rear leveling, and increases ground clearance, resulting in a bold, commanding presence on and off the road. Strength Meets Precision with Tubular Radius Arms: Ditch the weak factory setup. This kit features high-clearance tubular radius arms with a beefy 2-inch outer diameter design engineered for superior strength, durability, and optimized suspension geometry. These arms bolt directly into factory mounts for a straightforward, secure installation without the need for drop brackets. Engineered for Ride Quality: Lifted front coil springs raise your stance while maintaining a smooth, controlled ride. Designed to preserve factory-like angles, this system includes sway bar drop brackets and a track bar relocation bracket to ensure proper geometry and predictable handling across any terrain. Durability Where It Counts: Heavy-duty fabricated rear blocks outperform standard cast blocks with enhanced strength and longevity. Anti-axle wrap blocks help eliminate unwanted movement under torque, preserving your factory ride quality even under load. Customize Your Ride Performance: Dial in your preferred ride feel with configurable shock options. Go with Rough Country's nitrogen-charged N3 shocks for balanced on-road comfort and trail performance, or upgrade to V2 Monotube shocks for premium responsiveness and heat dissipation during demanding off-road conditions. Quick, Bolt-On Installation: No cutting, no drilling, just a simple bolt-on setup that gets you back on the road fast. This kit clears up to a 35" tire with proper wheel backspacing, unlocking your ideal stance without the headache. Rough Country Has You Covered: Every Rough Country 4.5" Suspension Lift Kit is backed by our Limited Lifetime Warranty, lift confidently and drive boldly.
Simple Bolt-On Installation: No cutting or drilling required for a hassle-free setup.
Boosted Ground Clearance: Conquer off-road obstacles with ease and gain a more aggressive stance.
Front-to-Rear Leveling: Eliminates factory rake for a clean, leveled look and improved balance.
Tubular Radius Arms: Engineered for strength and performance with a 2" outer diameter design.
Factory-Mount Compatible: Precision-fit to bolt directly into OEM mounts for hassle-free installation.
Improved Geometry: Designed to maintain a more factory-like suspension angle.
Heavy-Duty Construction: Oversized arms offer superior strength compared to stock components.
Durable Rubber Bushings: Reduce noise and absorb vibrations for a smoother ride.
Heavy-Duty Fabricated Blocks: Stronger and longer-lasting than standard cast blocks for maximum durability.
Anti-Axle Wrap Rear Blocks: Maintain factory ride quality while eliminating common lift block issues.
Configurable Shock Options: Choose from our nitrogen-charged N3 or V2 Monotube shocks, the power to customize your ride is in your hands!
Due to variances in motor weight, this kit does NOT fit models equipped with a gas engine. Does NOT ft models equipped with Tremor Off-Road Package as they are equipped with approximately a 1.5-inch factory lift. Does NOT fit dually models.
Fitment Year: 2023 2024 2025 2026
Make: Ford
Model: F-250 Super Duty
Submodel: King Ranch
Drive: 4WD
Manufacturer SKU: 400340
Most products ship directly from our vendor warehouses or distributor network. Shipping times can vary depending on the brand, product size, availability, and destination.
Large or oversized items such as lift kits, wheels, tires, bumpers, exhaust systems, and audio enclosures may require additional handling time or freight shipping.
If there is ever an issue with availability, shipping cost, or delivery timing, we will contact you before moving forward with the order.
Returns may be accepted on most new, unused, unopened items within 30 days of delivery. Items must be in original packaging and in resellable condition.
Installed, used, damaged, missing-parts, electrical, special-order, clearance, or custom-built items may not be eligible for return.
Return shipping is normally the customer’s responsibility unless the return is due to our mistake, such as the wrong item being shipped.
Before sending anything back, please contact Kaos Offroad so we can review the order and provide return instructions. Returns sent without approval may be refused.
Some products are vehicle-specific. Please verify fitment before ordering. If you are unsure, contact us with your year, make, model, sub-model, and any relevant details before purchasing.
Original shipping charges, freight charges, and vendor restocking fees may be non-refundable depending on the item and supplier policy.






