M1 Rear Shocks | -4" | Lowering | Chevy/GMC 1500 (07-26 & Classic)

Unmatched Performance: Conquer any terrain with confidence - Rough Country's Nitrogen-Charged M1 Monotube Shock Absorber delivers superior ride quality and performance mile after mile. Engineered for excellence, the M1 features an internal floating piston that keeps shock oil and high-pressure nitrogen separate, ensuring lightning-fast response with zero cavitation for unshakable vibration damping over every obstacle. Built to Last: Crafted for the toughest conditions, the M1's 2-inch seamless extruded tube offers superior strength, while the 46mm digressive piston provides long-lasting durability and precise control. Digressive valving reacts instantly to changing surfaces, adapting seamlessly to rough trails and smooth streets alike. Engineered for Strength: The 18mm centerless-ground, case-hardened, chromed, and super-polished piston rod enhances durability, while a zinc-plated finish provides exceptional resistance against rust and harsh elements. No matter the conditions, the M1 is built to withstand the test of time. Bold Looks, Smooth Ride: Designed for both performance and aesthetics, the M1 is meant to be mounted body-up for a bold, eye-catching look. Plus, with durable vulcanized natural rubber bushings, you get a smooth, quiet ride with reduced vibrations. Guaranteed Confidence: Backed by Rough Country's 3-year Manufacturer's Warranty, the M1 Monotube Shock Absorber isn't just an upgrade - it's the ultimate performance shock built to handle whatever the road throws your way.

Features

Heavy-Duty Build: 2-inch seamless extruded tube for superior strength and durability.

Precision Engineering: 46mm digressive piston delivers responsive performance on any terrain.

Self-Adjusting Technology: Deflective-disc independent rebound and compression for a smooth, controlled ride.

Ultra-Strong Piston Rod: 18mm centerless-ground, case-hardened, chromed, and super-polished piston rod for maximum durability.

Monotube Design: 46mm high-performance monotube ensures consistent, fade-free performance in all conditions.

Instant Response: Digressive valving reacts instantly to changing surface conditions for optimal control.

The Kaos Run Down

• Manufacturer SKU: 770867_A
• Product Type: Shocks & Stabilizers
• Fitment Years: ["2007","2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024","2025","2026"]
• Make: ["GMC","Chevy"]
• Model: ["Sierra 1500","Silverado 1500 Classic","Silverado 1500"]
• Submodel: Custom
• Drive: ["2WD"]
• Notes: ONLY fits models with a 4" rear lowering kit installed.