Rough Country N3 Rear Shocks for Chevy/GMC 2500/3500 HD — 0-3 inch Lift, 54mm Body, Nitrogen-Charged

These N3 rear shocks are built specifically for full-size heavy-duty GM trucks to handle added lift, towing loads and off-road demands while keeping factory-like ride quality. They combine multi-stage valving, a large-diameter body for heat dissipation and nitrogen charging to reduce fade during repeated use. Durable construction and vehicle-specific tuning mean you get predictable handling whether you're towing, hauling or navigating rough terrain.

How do these shocks improve handling on lifted 2500/3500 HD trucks?

The N3 valving is tuned to compensate for lift kits up to 3 inches, delivering firmer control through compression and rebound cycles. That reduces wallow and body roll while maintaining a comfortable daily drive response.

• 10-stage variable valving for staged damping control
• Spring-loaded piston rod seal for consistent performance
• Large 54mm shock body for faster cooling under repeated loads

What durability features prevent failure under heavy use?

Rough Country engineered these shocks with materials and components selected for long service life under heavy-duty conditions. Reinforced bushings and high-tensile components resist wear from towing and trail use.

• Nitrogen-charged design to minimize aeration and fade
• Rubber bushings and 36kN tensile-strength components for strength
• Military-spec fluid rated for extreme low temperatures for consistent viscosity

Will these shocks manage heat during continuous towing or off-road runs?

The extra-large shock body and optimized internal flow help dissipate heat faster than smaller designs, which reduces performance fade during extended operation. That keeps damping consistent when you’re carrying heavy payloads or traversing rough trails.

• 54mm fast-cooling shock body to shed heat efficiently
• 10-stage valving helps control fluid movement and temperature impacts
• High-grade fluid with thermal stability for repeated cycles

What comes with the shocks and is there warranty support?

Each purchase includes vehicle-specific rear shocks matched to Chevy/GMC 2500 HD and 3500 HD rear setups for 0–3 inches of lift. Rough Country supports the product with a limited lifetime replacement warranty that backs manufacturing defects and fitment issues according to their terms.

• Set of rear N3 shocks, part 23220_D, for Chevy/GMC 2500/3500 HD
• Installation-ready with rubber bushings and protected seals
• Limited lifetime replacement warranty from Rough Country

Who is this for: These Rough Country N3 rear shocks are aimed at owners of Chevrolet and GMC 2500 HD and 3500 HD trucks who have a 0–3" lift and need robust, vehicle-specific damping. They suit drivers who tow heavy trailers, carry substantial payloads or regularly drive on rough roads and want improved control and heat-resistant performance without sacrificing everyday comfort.