🔥 Rough Country 56021 6-Inch Suspension Upgrade N3 Lift Kit for Ford F-250 / F-350 Super Duty 4WD (2017–2022 Diesel)
If you want aggressive stance with dependable daily performance, this configuration delivers. The Rough Country 56021 Lift kit is engineered specifically for 2017–2022 Ford F-250 and F-350 Super Duty 4WD diesel models. It provides six inches of suspension lift using a radius arm suspension design paired with N3 nitrogen-charged shocks.
This system is calibrated for the weight of the 6.7L Power Stroke diesel engine. It is not intended for gas engine models.
This Lift Kit offers corrected geometry, improved ground clearance, and strong towing stability.
🚙 Confirmed Vehicle Compatibility
Designed specifically for:
Not compatible with:
Front coil springs are rated for diesel engine weight. That ensures proper ride height and balance.
Always verify engine type before purchasing.
🆚 What Makes the 56021 Configuration Unique?
The 56021 configuration features upgraded heavy-duty radius arms. It maintains factory-style geometry while correcting suspension angles for six inches of lift.
This system typically includes:
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Heavy-duty radius arms
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Lifted diesel-rated coil springs
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Heavy-duty front crossmembers
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Rear lift blocks
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N3 nitrogen-charged shock absorbers
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Adjustable track bar
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Sway bar relocation brackets
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Brake line relocation components
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Pitman arm
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Differential drop brackets
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Complete installation hardware
This setup retains the durable radius arm layout while improving alignment and axle positioning.
This Lift Kit is engineered for stability and long-term reliability.
💪 Radius Arm Suspension Advantage
The factory radius arm suspension is known for durability and predictable handling.
Upgraded radius arms improve caster correction and front axle positioning.
Benefits include:
While 4-Link systems improve articulation, radius arm systems provide excellent daily drivability.
This configuration is ideal for trucks used for work and towing.
🎯 N3 Shock Performance
The N3 shocks included in this configuration are nitrogen-charged twin-tube dampers.
Advantages include:
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Balanced ride comfort
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Reliable compression and rebound control
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Stable handling under load
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Improved control compared to factory shocks
N3 shocks are tuned for lifted heavy-duty trucks.
They deliver predictable performance for daily driving and moderate off-road use.
This Lift Kit combines structural suspension correction with dependable damping.
🌄 Six Inches of Height and Tire Clearance
Six inches of suspension lift dramatically transforms your truck’s appearance.
Increased ride height improves approach and departure angles.
Many owners run 35-inch tires with proper wheel offset. Some applications allow larger tires depending on trimming and wheel selection.
Always confirm tire and wheel compatibility before installation.
This Lift Kit enhances both capability and bold styling.
🚛 Towing and Heavy-Duty Capability
The 6.7L diesel Super Duty platform is built for demanding workloads.
Corrected suspension geometry helps maintain proper axle alignment under heavy loads.
Rear lift blocks preserve factory rake for improved trailer balance.
Upgraded radius arms improve stability during towing and hauling.
This suspension upgrade supports commercial and recreational builds.
🛠 Installation Overview
Professional installation is recommended.
The system bolts to factory mounting points using supplied hardware.
Some trimming may be required depending on tire size.
A complete alignment is mandatory after installation.
Proper setup ensures long-term reliability and safe handling.
🔩 Built for Strength and Durability
Powder-coated steel components resist corrosion and harsh conditions.
Heavy-duty crossmembers reinforce suspension mounting areas.
High-grade hardware secures suspension components under stress.
Diesel-rated coil springs maintain proper height and balance.
This suspension system is engineered for dependable heavy-duty performance.
🚀 Why Choose the 56021 Suspension System?
This configuration is ideal if you want:
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Diesel-specific spring rates
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Upgraded heavy-duty radius arms
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Improved ground clearance
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Larger tire capability
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Stable towing performance
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Balanced N3 shock performance
It delivers structural suspension improvement tailored for 2017–2022 diesel Super Duty trucks.
This Lift Kit provides engineered height, durability, and dependable performance.
🔗 Explore More Suspension Options
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📞 Need Expert Assistance?
Have questions about compatibility or suspension differences? Contact Audio Jam at (302) 832-2868. Our team can help confirm the correct configuration before purchase.
❓ Frequently Asked Questions
1. Is this Lift Kits compatible with gas 2017–2022 Super Duty models?
No. This Lift Kits is engineered specifically for 6.7L diesel 4WD models.
2. What makes this Lift Kits different from a 4-Link version?
This Lift Kits retains upgraded radius arms instead of converting to a 4-Link system.
3. Can this Lift Kits support heavy towing?
Yes. This Lift Kits maintains corrected suspension geometry for stable towing performance.
