Rough Country Super Duty 2WD/4WD N3 Rear Shocks - 5-7.5in Lift (2017-2026)

Lifted Super Duty trucks demand shocks that can handle both highway miles and serious off-road abuse without fading. Rough Country's N3 rear shocks pair a nitrogen-charged monotube design with 10-stage variable valving to deliver controlled damping across the full range of conditions your 2017-2026 F-250 or F-350 will encounter, purpose-built for suspension setups running 5 to 7.5 inches of lift. Sold as a pair, these bolt in with standard hand tools in one to two hours.

10-stage variable valving for real-world versatility. The valving stack adjusts damping force progressively through the shock's travel, giving a composed highway ride without sacrificing the firmness needed when the terrain gets rough. Whether you are hauling a loaded trailer down the freeway or crawling a rocky trail, the N3 responds to what the suspension is actually doing rather than delivering one fixed tune for every situation.

A 54mm shock body keeps heat from becoming a problem. The larger-diameter body increases surface area for faster heat dissipation, which means damping stays consistent during extended hard use or repeated compression cycles. A high-pressure nitrogen charge works alongside the body size to resist aeration and shock fade, while the 18mm chromed hardened piston rod fights corrosion at the points most exposed to trail debris and road spray.

Military-spec fluid rated to negative 40 degrees Celsius. Cold-weather starts and winter trail runs do not degrade damping behavior, because the fluid maintains its viscosity at temperatures that would compromise standard shock oil. Spring-loaded piston rod seals keep that fluid where it belongs, adding longevity without requiring extra maintenance.

Rubber bushings and a silver finish round out the package. Natural rubber end bushings absorb NVH at the mounting points for a quieter daily driver, and the metallic silver paint adds a layer of corrosion resistance to survive seasons of mud, salt, and grime.

Product Benefits

• 10-Stage Variable Valving: Precisely tuned damping transitions from highway comfort to off-road control.
• High-Pressure Nitrogen Charged: Reduces aeration and prevents shock fade during sustained hard use.
• 54mm Shock Body: Larger diameter accelerates heat dissipation to maintain consistent performance.
• 18mm Chromed Hardened Piston Rod: Resists corrosion and handles heavy impacts without deforming.
• 36kN Tensile Strength: Built to endure the loads and impacts common to lifted Super Duty applications.
• Military-Spec Fluid to -40°C: Maintains damping performance in extreme cold-weather conditions.
• Spring-Loaded Piston Rod Seal: Prevents fluid leaks and extends service life.
• Natural Rubber Bushings: Absorb vibration and reduce road and trail noise at the mounting points.
• Metallic Silver Paint: Corrosion-resistant finish stands up to road salt, mud, and UV exposure.
• Sold as a Pair: Both rear shocks included for a complete axle replacement.
• 3-Year Manufacturer's Warranty: Rough Country backs these shocks against defects for three years.

Note: Fits 2017-2026 F-250 Super Duty and F-350 Super Duty in both 2WD and 4WD configurations. Only compatible with vehicles running 5 to 7.5 inches of suspension lift. Does not fit stock ride-height applications.

About Rough Country: Rough Country designs and manufactures suspension lift kits, shocks, and off-road accessories for trucks and SUVs across a broad range of platforms. The brand focuses on delivering capable, bolt-on performance products at accessible price points, backed by in-house engineering and dedicated technical support.

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