Rough Country Super Duty 4WD N3 Rear Shocks - 0-4.5in Lift (2017-2026)

Rough Country's N3 rear shocks bring tuned damping control and proven durability to 2017-2026 F-250 and F-350 Super Duty trucks running 0-4.5 inches of suspension lift. Engineered for both daily highway miles and demanding off-road use, these shocks deliver a composed, controlled ride without sacrificing the toughness a Super Duty owner expects. Sold as a pair, they install in 1-2 hours with standard hand tools.

Precise damping through 10-stage variable valving. Rather than a fixed damping rate, the N3's 10-stage variable valving adjusts response across the full range of terrain and load conditions. The result is a smooth, settled feel on pavement and confident control when the road ends.

High-pressure nitrogen charge eliminates shock fade. A nitrogen-charged design separates oil from gas to prevent aeration, keeping damping consistent whether you're crawling through ruts or running highway speeds with a loaded bed. The 54mm shock body dissipates heat faster than smaller-diameter units, maintaining performance under sustained use.

Built to resist wear and corrosion long-term. An 18mm chromed, hardened piston rod fights corrosion in wet and muddy conditions. The spring-loaded piston rod seal keeps fluid where it belongs. Military-spec fluid rated to -40 degrees Celsius ensures reliable cold-weather starts and performance across extreme temperature swings. A tensile strength rating of 36kN means these shocks handle heavy impacts and high loads without yielding.

Natural rubber bushings reduce vibration and road noise. Instead of polyurethane, the N3 uses natural rubber bushings that absorb small-frequency vibrations and minimize cabin noise, keeping daily driving comfortable without adding harshness to the ride.

Product Benefits

• 10-Stage Variable Valving: Precisely tuned damping adapts to highway, trail, and loaded-bed conditions.
• Nitrogen Charged: Prevents aeration and shock fade during extended or intense use.
• 54mm Shock Body: Larger diameter accelerates heat dissipation to sustain consistent performance.
• 18mm Chromed Hardened Piston Rod: Resists corrosion and wear in harsh environments.
• 36kN Tensile Strength: Rated to absorb heavy impacts and extreme loads.
• Military-Spec Fluid: Rated to -40 degrees Celsius for dependable cold-weather operation.
• Spring-Loaded Piston Rod Seal: Prevents fluid leaks and extends service life.
• Natural Rubber Bushings: Absorb vibration and reduce road noise for a quieter ride.
• Metallic Silver Finish: Corrosion-resistant paint adds durability and a clean appearance.
• Sold as a Pair: Includes both rear shocks for a complete axle replacement.
• 3-Year Manufacturer's Warranty: Backed by Rough Country's standard warranty coverage.

Note: Fits 2017-2026 F-250 Super Duty and F-350 Super Duty 4WD models only. Compatible with 0-4.5 inches of suspension lift only. Does not fit stock or non-4WD configurations.

About Rough Country: Rough Country designs and manufactures suspension lifts, shocks, and off-road accessories focused on delivering capable performance at an accessible price point. The brand covers a wide range of trucks and SUVs, with fitment-specific engineering and in-house testing on each product line.

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