M1 Monotube Rear Shocks | -4" | Lowering | Ford F-150 4WD (2015-2026)

Meet the M1 Monotube Rear Shock Absorber from Rough Country — a nitrogen-charged, -4" lowering shock built for Ford F-150 4WD (2015-2026) that blends rugged durability with confident on-road manners and off-road capability. This is designed for drivers who want a performance upgrade that looks as bold as it feels.

• Monotube nitrogen-charged design: A single-tube construction with nitrogen pressure delivers rapid response and minimizes cavitation for consistent damping over rough terrain.
• Internal Floating Piston (IFP) technology: Keeps shock oil and high-pressure nitrogen separate, ensuring stable performance under load and throughout fast suspension movement.
• 46mm digressive piston: Provides progressive, durable damping that remains smooth as you encounter obstacles and varied surfaces.
• Brushed galvanized steel body with passivation sealing: Built to resist corrosion and the elements while maintaining a clean, rugged appearance.
• -4" lowering design: Enables a lowered stance for a more aggressive look without compromising dampening control.
• Body-up mounting orientation: Offers a distinctive stance while preserving performance and reliability on varied terrain.
• Application: Specifically engineered for Ford F-150 4WD models from 2015–2026.

With the M1 Monotube Rear Shock, you’ll experience immediate, controlled damping as you traverse mixed terrain—from rocky trails to city streets. The nitrogen-charged setup minimizes cavitation, helping the shock respond quickly to sudden impacts and maintain grip, while the 46mm digressive piston delivers consistent performance across a wide range of speeds and loads. The rugged steel construction and protective passivation seal ensure durability in harsh conditions, and the -4" lowering helps achieve a balanced, confident stance without compromising ride integrity. This is a practical upgrade for F-150 owners seeking reliable, long-term performance that aligns with both everyday driving and weekend adventures.