M1R Monotube Rear Shocks | 2.5-4" | Chevy/GMC Avalanche (02-06)/Half-Ton Suburban (69-91)

Take command of every ride with Rough Country’s M1R Monotube Rear Shocks—the pinnacle of control, comfort, and endurance for heavy-duty trucks. Built to handle rough terrain and heaviest loads, these shocks keep your Chevy/GMC Avalanche (02–06) and Half-Ton Suburban (69–91) performing at their best, on and off the road.

Key innovations that redefine damping

• External reservoir with a 46mm monotube design delivers faster heat dissipation for fade-free performance, even during long off-road sessions or full-load towing.
• Internal floating piston separates oil and gas for consistent damping, preventing cavitation under rugged use.
• 2-inch digressive piston and self-adjusting deflective-disc valving adapt on the fly to changing terrain, giving you precise control whether you’re cruising pavement or crawling over rocks.
• Robust construction includes a 2-inch seamless extruded body and a 16mm case-hardened chromed rod for lasting rigidity and resistance to wear.
• Corrosion-resistant finish with galvanized zinc helps protect against mud, salt, and grime so you stay confident in any environment.
• Natural rubber bushings minimize noise and vibration, preserving a smooth, composed ride feel even under heavy load.
• Reliability you can count on—backed by Rough Country’s 3-year manufacturer’s warranty, designed to endure the demands of daily driving and weekend adventures.

Compatibility and fitment

Rear shocks engineered for the following applications: Chevy/GMC Avalanche (2002–2006) and Half-Ton Suburban (1969–1991). This design ensures a precise fit and optimized performance for these classic trucks, delivering improved damping, handling, and ride quality without compromising load capacity.

Who benefits from the M1R Monotube Rear Shocks?

• Truck owners who regularly tow trailers or haul heavy gear and demand consistent, fade-free damping across varied conditions.
• Off-road enthusiasts seeking dependable control on rough trails, desert washes, or rocky descents without excess jiggle or body roll.
• Owners upgrading aging suspension from stock components who want enhanced durability, reduced noise, and longer service life.

Upgrade to the M1R Monotube Rear Shocks and experience a tangible shift in ride quality: sharper handling, steadier damping, and the confidence to push further—whether on the highway, the worksite, or the backcountry. Built to endure, backed by a solid warranty, and tailored for your Chevy/GMC pickup, these shocks redefine what your truck is capable of delivering every day.