🔥 Rough Country 51757 6-Inch Suspension Upgrade M1 Monotube Lift Kit for Ford F-250 / F-350 Super Duty 4WD (2017–2022)
If you want aggressive height with enhanced monotube shock control, this configuration delivers. The Rough Country 51757 lift kit is engineered for the 2017–2022 Ford F-250 and F-350 Super Duty 4WD platform. It provides six inches of suspension lift using a heavy-duty radius arm drop system paired with M1 monotube shocks.
Unlike entry-level N3 or V2 versions, this setup includes larger-bodied M1 shocks for improved oil capacity and heat management. It maintains factory-style suspension architecture while upgrading damping performance.
This Lift Kit is ideal for truck owners who want stronger shock response without converting to a 4-Link or coilover system.
🚙 Vehicle Compatibility
Designed specifically for:
Not compatible with 2WD models.
Compatible with diesel and gas engines. Always verify axle size and drivetrain configuration before installation.
This system is engineered for the aluminum-body Super Duty chassis introduced in 2017.
🆚 What Makes the 51757 Configuration Different?
The defining feature of this configuration is the inclusion of M1 monotube shock absorbers within a radius arm drop design.
This system typically includes:
-
Heavy-duty front crossmembers
-
Radius arm drop brackets
-
Lifted front coil springs
-
Rear lift blocks
-
M1 monotube shock absorbers
-
Adjustable track bar
-
Brake line relocation brackets
-
Differential drop brackets
-
Sway bar relocation components
-
High-strength mounting hardware
The M1 shocks feature a larger body compared to V2 shocks. That increases oil capacity and thermal efficiency.
This Lift Kit focuses on upgraded damping performance while retaining factory-style suspension layout.
💪 Radius Arm Geometry Correction
The 2017–2022 Super Duty platform uses a radius arm front suspension. Lifting requires geometry correction.
Drop brackets reposition the factory radius arms. That restores proper caster alignment and driveline angles.
Benefits include:
This design maintains the strength and simplicity of the factory suspension.
It provides dependable alignment correction for lifted applications.
🎯 M1 Monotube Shock Technology
The M1 monotube shocks are the highlight of this configuration.
Advantages include:
Monotube construction separates gas and oil chambers. That reduces aeration and shock fade.
Compared to V2 systems, M1 shocks offer a more robust external profile and slightly firmer control.
They are ideal for drivers who tow frequently or drive aggressively.
This configuration enhances stability without introducing adjustable components.
🌄 Six Inches of Height and Clearance
Six inches of suspension lift transforms the truck’s stance.
Increased ride height improves ground clearance and approach angles.
Many owners run 35-inch tires with proper wheel offset. Always confirm wheel and tire specifications before installation.
The truck gains improved undercarriage protection and bold styling.
This Lift Kit enhances both capability and presence.
🚛 Towing and Work Capability
Super Duty trucks are designed for heavy-duty applications.
The corrected radius arm geometry maintains proper axle alignment under load.
Rear lift blocks help preserve factory rake for towing stability.
M1 shocks improve rear-end control when hauling equipment or trailers.
This suspension upgrade supports both commercial and recreational use.
🛠 Installation Overview
Professional installation is recommended.
The system bolts to factory mounting locations using included hardware.
A complete wheel alignment is required after installation.
Installation time is moderate compared to full 4-Link conversions.
Proper setup ensures long-term reliability and safe operation.
🔩 Built for Durability
Powder-coated steel components resist corrosion and harsh environments.
Heavy-duty crossmembers reinforce suspension mounting areas.
High-grade hardware secures components under stress.
M1 monotube shocks are engineered for durability and long-term performance.
This suspension system is built for strength and reliability.
🚀 Why Choose the 51757 Suspension System?
This configuration is ideal if you want:
It delivers improved damping compared to V2 versions while retaining simple installation.
This Lift Kit provides engineered height and upgraded shock performance for 2017–2022 Super Duty trucks.
🔗 Explore More Suspension Options
Looking for additional heavy-duty suspension upgrades?
Lift kits collection
Protect your upgraded truck with professional window services.
Car window tinting
📞 Need Expert Assistance?
Have questions about shock differences or compatibility? Contact Audio Jam at (302) 832-2868. Our team can help you choose the right suspension configuration.
❓ Frequently Asked Questions
1. Will this Lift Kits fit my 2021 Ford F-250 Super Duty 4WD?
Yes. This Lift Kits is designed for 2017–2022 F-250 and F-350 Super Duty 4WD models.
2. What makes this Lift Kits different from the V2 version?
This Lift Kits includes larger-bodied M1 monotube shocks instead of V2 shocks.
3. Can this Lift Kits handle towing and heavy loads?
Yes. This Lift Kits maintains corrected suspension geometry for stable towing performance.
