M1R Monotube Rear Shocks | 0-4" | Chevy/GMC 1500 (07-26 & Classic)

Upgrade your Chevy/GMC 1500 with Rough Country’s M1R Monotube Rear Shocks for 0-4" lifts (07-26 & Classic). These shocks are engineered to deliver precise control, ride comfort, and unwavering durability, whether you’re carving hard-packed trails or hauling heavy loads on the highway.

• 46mm monotube design with an external reservoir for faster heat dissipation and fade-free performance in demanding environments.
• Internal floating piston separates oil and gas, maintaining consistent damping even under extreme use and extended trips.
• 2-inch digressive piston paired with self-adjusting deflective-disc valving automatically adapts to changing terrain, delivering stable handling from pavement to backcountry.
• Rugged construction: 2-inch seamless extruded body, 16mm case-hardened chromed rod, and a galvanized zinc finish that stands up to corrosion; natural rubber bushings reduce noise and vibration for a smoother ride.
• Backed by Rough Country’s industry-leading 3-year manufacturer’s warranty for lasting confidence and performance.

Why the M1R matters on and off the road

Real-world driving demands more than just a smooth ride. The M1R Monotube Rear Shocks manage heat efficiently, so performance doesn’t drop during long hauls or steep ascents. The external reservoir increases oil capacity, supporting consistent damping when you’re pushing the vehicle to its limits. The internal floating piston prevents gas-oil separation, ensuring repeatable, fade-free damping from the trail to the highway.

Designed for real-world use

• Ideal for owners who regularly haul payloads or tow trailers, needing dependable damping under load with reduced chassis movement.
• Perfect for off-road enthusiasts who explore rough terrain, rock crawling, or desert runs where heat and terrain changes are constant.
• Suitable for daily drivers who want improved ride quality and quieter, more controlled handling without sacrificing durability.

Compatibility and durability you can trust

These rear shocks are specifically engineered for Chevy/GMC 1500 trucks from 2007 through 2026, including Classic configurations, and are rated for 0-4" lift applications. Built to endure the harshest conditions, they pair seamlessly with the vehicles’ existing suspension geometry and provide a reliable upgrade that handles both everyday driving and adventurous weekends.