Rough Country 51258 6-Inch N3 Lift Kit Ford F-250/F-350 4WD 2017-22

🔥 Rough Country 51258 6-Inch Suspension Upgrade N3 Radius Arm Lift Kit for Ford F-250 / F-350 Super Duty 4WD (2017–2022)

If you want aggressive height with dependable daily performance, this configuration delivers. The Rough Country 51258 lift kit is engineered for the 2017–2022 Ford F-250 and F-350 Super Duty 4WD platform. It provides six inches of suspension lift using a heavy-duty radius arm drop design paired with N3 nitrogen-charged shocks.

Unlike V2, M1, or Vertex versions, this setup focuses on value and balanced ride comfort. It maintains factory-style suspension geometry while improving stance and ground clearance.

This Lift Kit is ideal for truck owners who want reliability, towing stability, and larger tire fitment without premium shock pricing.

🚙 Vehicle Compatibility

Designed specifically for:

• Ford F-250 Super Duty 4WD (2017–2022)

• Ford F-350 Super Duty 4WD (2017–2022)

Not compatible with 2WD models.

Compatible with diesel and gas engines. Always verify axle size and drivetrain configuration before installation.

Engineered for the aluminum-body Super Duty chassis introduced in 2017.

🆚 What Makes the 51258 Configuration Different?

The 51258 configuration uses N3 twin-tube shock absorbers within a radius arm drop system.

This system typically includes:

• Heavy-duty front crossmembers

• Radius arm drop brackets

• Lifted front coil springs

• Rear lift blocks

• N3 nitrogen-charged shock absorbers

• Adjustable track bar

• Brake line relocation brackets

• Differential drop brackets

• Sway bar relocation components

• High-strength mounting hardware

N3 shocks are designed for balanced on-road comfort and moderate off-road use.

This Lift Kit provides practical suspension correction without moving into monotube or coilover systems.

💪 Radius Arm Suspension Geometry

The 2017–2022 Super Duty platform uses a radius arm front suspension. Lifting requires proper geometry correction.

Drop brackets reposition the factory radius arms. That restores caster alignment and driveline angles.

Benefits include:

• Stable steering feel

• Reduced front-end wander

• Improved highway tracking

• Reliable towing capability

This setup maintains the simplicity and strength of the factory design.

It provides dependable performance for daily use.

🎯 N3 Shock Performance

N3 shocks are nitrogen-charged twin-tube dampers.

Advantages include:

• Smooth ride quality

• Balanced compression and rebound control

• Improved stability over factory suspension

• Reliable performance under load

While not monotube, N3 shocks are tuned for lifted applications.

They provide comfortable driving characteristics for everyday use.

This configuration is ideal for drivers who prioritize comfort and affordability.

🌄 Six Inches of Ride Height

Six inches of suspension lift dramatically improves stance and clearance.

Increased ride height enhances approach and departure angles.

Many owners choose 35-inch tires with proper wheel offset. Always confirm fitment before installation.

The truck gains improved undercarriage protection and bold styling.

This Lift Kit enhances both function and appearance.

🚛 Towing and Heavy-Duty Capability

Super Duty trucks are built for towing and hauling.

The corrected radius arm geometry maintains axle alignment under load.

Rear lift blocks preserve rake for improved trailer balance.

N3 shocks provide stable rear-end control when hauling equipment.

This suspension upgrade supports work and recreational builds.

🛠 Installation Overview

Professional installation is recommended.

The system bolts to factory mounting locations using included hardware.

A complete wheel alignment is mandatory after installation.

Installation time is moderate compared to full 4-Link conversions.

Proper setup ensures long-term safety and performance.

🔩 Built for Strength and Reliability

Powder-coated steel components resist corrosion and harsh environments.

Reinforced crossmembers strengthen suspension mounting areas.

High-grade hardware secures components under load.

N3 shocks are engineered for durability and consistent performance.

This suspension system is built for dependable long-term use.

🚀 Why Choose the 51258 Suspension System?

This configuration is ideal if you want:

• Proven radius arm suspension correction

• Balanced daily ride comfort

• Larger tire clearance

• Strong towing stability

• Reliable shock performance

It delivers aggressive height without premium shock upgrades.

This Lift Kits provides engineered suspension performance for 2017–2022 Super Duty trucks.

🔗 Explore More Suspension Options

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📞 Need Expert Assistance?

Have questions about compatibility or shock options? Contact Audio Jam at (302) 832-2868. Our team can help you choose the right suspension configuration.

❓ Frequently Asked Questions

1. Will this Lift Kits fit my 2018 Ford F-250 Super Duty 4WD?

Yes. This Lift Kits is designed for 2017–2022 F-250 and F-350 Super Duty 4WD models.

2. What makes this Lift Kits different from V2 or M1 versions?

This Lift Kits uses N3 twin-tube shocks instead of monotube shocks.

3. Can this Lift Kits support towing and heavy loads?

Yes. This Lift Kits maintains corrected suspension geometry for stable towing performance.