Rough Country 2.5-5.5" M1 Monotube Rear Shocks for 1977-1979 F250 - 770740_I

Master the Trail: Whether you're tearing through rocky trails or cruising city streets, Rough Country's Nitrogen-Charged M1 Monotube Shock Absorber delivers uncompromising control, comfort, and capability. Designed for the off-road enthusiast who demands more from every mile, the M1 redefines what a high-performance shock should be.

Precision Damping for Every Terrain: At the heart of the M1 is a high-performance 46mm digressive piston with self-adjusting deflective-disc technology. This advanced setup reacts instantly to changing terrain, delivering smooth, predictable rebound and compression for maximum traction and comfort, no matter how punishing the path ahead.

Engineered to Endure: Built with a 2-inch seamless extruded tube and a case-hardened, chrome-plated 18mm piston rod, the M1 is ready for extreme off-road abuse. The durable monotube design ensures fade-free performance, while the zinc-plated finish shields against rust, mud, and water in the harshest environments.

Custom Fit for Your Build: Available in multiple lift heights, the M1 adapts seamlessly to your suspension setup. Durable vulcanized rubber bushings absorb shock and reduce vibration, helping to preserve component life and ride quality through every adventure.

Style That Performs: With its sleek brushed and galvanized body and body-up mounting design, the M1 doesn't just work hard, it looks good doing it. Backed by a 3-year manufacturer's warranty, this is the shock that lets you push limits without compromise.

Items Included:

(2) M1 Monotube Shock Absorbers

Sold in pairs. Expanded Length: 26.57" | Collapsed Length: 16.3" California Residents: Prop65 Warning