🔥 Rough Country 49340 6-Inch Suspension Upgrade N3 Radius Arm Lift Kit for Ford F-250 / F-350 Super Duty 4WD (1999)
If you want aggressive ride height with dependable shock performance, this configuration delivers. The Rough Country 49340 lift kit is engineered specifically for the 1999 Ford F-250 and F-350 Super Duty 4WD platform. It provides six inches of suspension lift using a heavy-duty radius arm drop system paired with N3 nitrogen-charged shocks.
The 1999 model year introduced the first generation Super Duty chassis. That platform uses a solid front axle with coil springs and radius arms. This system corrects geometry while improving ground clearance and stance.
This Lift Kit is ideal for restoring, upgrading, or building a classic 1999 Super Duty.
🚙 Vehicle Compatibility
Designed specifically for:
Not compatible with 2WD models.
Fits trucks equipped with the solid front axle and coil spring suspension.
Always verify drivetrain configuration before installation.
🆚 What Makes the 49340 Configuration Different?
The 49340 version includes N3 nitrogen-charged twin-tube shocks. That differentiates it from basic shock configurations.
This system typically includes:
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Heavy-duty front crossmembers
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Radius arm drop brackets
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Lifted front coil springs
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Rear lift blocks
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N3 nitrogen-charged shock absorbers
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Track bar relocation bracket
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Brake line relocation components
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Differential drop brackets
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Sway bar relocation hardware
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High-strength installation hardware
The geometry correction is engineered for the 1999 steering and axle design.
This Lift Kit focuses on restoring proper caster alignment while delivering balanced shock performance.
💪 Radius Arm Geometry Correction
The 1999 Super Duty uses a coil spring solid front axle with radius arms.
When lifting this platform, radius arm drop brackets are required. They restore factory alignment angles.
Benefits include:
Maintaining proper suspension angles reduces stress on steering components.
This design preserves the durability of the original Super Duty layout.
🎯 N3 Shock Performance
The N3 shocks included in this configuration are nitrogen-charged twin-tube dampers.
Advantages include:
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Smooth daily ride quality
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Balanced compression and rebound control
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Reliable performance under load
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Improved stability compared to factory shocks
While not monotube or adjustable, N3 shocks are tuned for lifted applications.
They provide dependable comfort for daily driving and moderate off-road use.
This configuration is ideal for drivers who want improved ride quality without moving into premium shock systems.
🌄 Six Inches of Height and Clearance
Six inches of suspension lift transforms the look of a 1999 Super Duty.
Increased ride height improves approach and departure angles.
Many owners run 35-inch tires with appropriate wheel offset. Always confirm fitment before installation.
The truck gains improved undercarriage protection and aggressive styling.
This Lift Kit enhances both functionality and presence.
🚛 Towing and Heavy-Duty Capability
The 1999 Super Duty is known for towing strength and durability.
Proper radius arm geometry correction helps maintain axle alignment under load.
Rear lift blocks preserve rake for improved trailer balance.
N3 shocks provide stable rear control when hauling equipment.
This suspension upgrade supports both work trucks and weekend builds.
🛠 Installation Overview
Professional installation is recommended.
The system bolts to factory mounting points using included hardware.
Some trimming may be required depending on wheel and tire size.
A complete alignment is mandatory after installation.
Proper setup ensures long-term reliability and safe handling.
🔩 Built for Durability
Powder-coated steel components resist corrosion and harsh conditions.
Heavy-duty crossmembers reinforce the front suspension structure.
High-grade hardware secures components under stress.
N3 shocks are engineered for consistent long-term performance.
This suspension system is built for durability and reliability.
🚀 Why Choose the 49340 Suspension System?
This configuration is ideal if you want:
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Proven radius arm geometry correction
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Balanced N3 shock performance
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Larger tire clearance
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Strong towing stability
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Aggressive six-inch ride height
It delivers dependable suspension performance for the original Super Duty platform.
This Lift Kit provides engineered height and reliability for the 1999 model year.
🔗 Explore More Suspension Options
Looking for additional heavy-duty suspension upgrades?
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Protect your upgraded truck with professional window services.
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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 select the right suspension configuration.
❓ Frequently Asked Questions
1. Will this Lift Kits fit my 1999 Ford F-250 Super Duty 4WD?
Yes. This Lift Kits is designed specifically for 1999 F-250 and F-350 Super Duty 4WD models.
2. What makes this Lift Kits different from the base 1999 version?
This Lift Kits includes N3 nitrogen-charged shocks for improved ride comfort.
3. Can this Lift Kits support towing and heavy loads?
Yes. This Lift Kits maintains corrected suspension geometry for stable towing performance.
