Ford F2AS4005 4 Adventure Series Suspension System

Features:

• Increases ride height by 4.0 inches
• Enhanced off-road performance and stability
• Smooth and comfortable highway driving
• Lifetime warranty on suspension components
• Triple-rate coils for balanced ride quality
• Includes control arm drop brackets
• Adjustable sway-bar links for articulation
• Extended brake lines for lifted geometry
• Drop pitman arm improves steering alignment
• Track bar bracket corrects axle positioning
• Rear add-a-pack boosts towing support
• Ideal for diesel-powered 6.7L trucks

Unlock New Roads With Confidence And Comfort

If you're looking to transform your 2017-2022 Ford F250 or F350 Super Duty 4WD into a go-anywhere, do-anything truck, the Rock Krawler 4.0" Adventure Series Suspension System is what you need. Designed for the 6.7L Powerstroke diesel, this kit gives your rig the lift and capability to handle tough terrain without sacrificing the comfort you need for daily driving. Whether you’re towing heavy loads, navigating rough trails, or just cruising the highway, this system brings the stability, strength, and ride quality to do it all with confidence. The triple-rate front coils smooth out harsh bumps while keeping your truck composed and in control no matter the conditions. You’ll also appreciate the improved articulation and handling thanks to the adjustable front sway-bar links and sport-tuned shocks. Every component is engineered to take abuse and keep going, backed by a lifetime warranty that gives you peace of mind when the trail gets rough. It’s a reliable, all-around upgrade that adds real performance without making your truck uncomfortable or hard to live with.

Precision Built To Handle Work And Play

Every part of the Rock Krawler F2AS4005 Suspension System is designed with a purpose, to improve your truck’s geometry, handling, and overall performance both on and off the road. Starting with 4.0 inches of lift, the system re-centers your steering and suspension angles using drop brackets for the control arms and track bar. A drop pitman arm aligns your steering components properly to avoid binding, while extended brake lines and bump stop extensions allow for full suspension travel without stressing factory components. The triple-rate coils up front provide a progressive response that adapts whether you’re loaded down for work or heading into the backcountry for adventure. Rear add-a-pack springs offer a boost in towing and hauling support without a harsh ride. The included sway-bar links and shocks are tuned for balance and control, giving you confidence no matter the surface under your tires. It’s a fully integrated system that keeps your Super Duty working hard while feeling planted and smooth under all conditions.

Fits: 2017, 2018, 2019, 2020, 2021, 2022 Ford F250/F350 Super Duty 6.7L Powerstroke 4WD

Notes:

• Designed for 2017–2022 Ford F-250/F-350 4WD models with 6.7L Powerstroke diesel engine.
• Provides a 4.0" lift, allowing fitment of up to 38" tires.
• System includes sport-tuned triple-rate front coils for improved ride quality.
• Features control arm drop brackets and track bar relocation bracket made from ¼” thick laser-cut steel.
• Forged drop pitman arm included to correct steering geometry.
• Rear lift achieved with fabricated lift blocks and add-a-pack rear springs.
• Extended brake lines and bump stop extensions provided for proper suspension travel.
• Adjustable front sway-bar links included to enhance articulation.
• Shock options available: Bilstein 5100, 2.625" remote reservoir shocks, or 2.625" Fast CD adjustable shocks.
• Complete bolt-in system; no welding required for installation.
• Lifetime warranty covers hard parts; shocks and other components have limited warranties.
• Lead times vary: basic parts ship in 3–7 business days; complete systems in 5–10 business days; coil-over or long-arm systems in 2–3 weeks; customized orders in 4–5 weeks.