Rancho RS77047A RS7MT Rear Shock for 17-25 Ford F-250/F-350 Super Duty 4WD

Vehicle Fitment

• 2017-2025 Ford F-250 Super Duty 4WD (Rear, RS7MT Shock)
• 2017-2025 Ford F-350 Super Duty 4WD (Rear, RS7MT Shock)
• Fitment confirmed for stock rear ride height (0" lift)
• Compatible with XL, XLT, Lariat, King Ranch, Platinum, Limited trims

Features

• RS7MT monotube rear shock absorber design
• Monotube construction for better heat dissipation and performance
• Deflective Disc valving tailored for on- and off-road precision handling
• 14 mm hardened chrome piston rod resists scuffs and corrosion
• High-pressure nitrogen gas charge reduces shock fade
• Internal rebound bumper for smoother ride quality
• Rubber bushings reduce noise, vibration, and harshness
• Integrated dirt wiper sealing system protects internal seals
• Bold black finish with Rancho logo for lasting appearance
• Rancho limited lifetime warranty for peace of mind

Specifications

• Part Number: RS77047A
• Series: RS7MT Monotube Shock Absorber
• Position: Rear (Driver or Passenger)
• Design: Monotube, gas charged
• Body Diameter: ~2.0"
• Compressed Length: ~19.92"
• Extended Length: ~31.34"
• Stroke Length: ~11.42"
• Upper Mount: Eyelet with rubber bushing
• Lower Mount: Eyelet with rubber bushing
• Boot: Not included (optional boots available)
• Warranty: Rancho limited lifetime

Included Components

• 1x Rancho RS77047A Rear Shock Absorber
• Rubber bushings installed
• Factory mounting hardware reused for installation

Product Description

The Rancho RS77047A RS7MT Rear Shock Absorber is a performance-oriented replacement designed for **2017-2025 Ford F-250 and F-350 Super Duty 4WD** trucks with stock rear ride height (0" lift). Part of Rancho's RS7MT Series, this monotube shock features a robust construction that disperses heat efficiently, helping maintain steady damping performance on both paved roads and off-road terrain. Its integrated dirt wiper seal protects the internal components from moisture and debris, while the nitro-charged gas design reduces fade and improves control over bumps and rough surfaces.

Built with a hardened chrome piston rod and internal rebound bumper, the RS77047A delivers smoother ride quality and enhanced durability compared with many standard OE shocks. Rubber bushings help reduce noise and vibration, and the monotube design supports precision handling under load. Sold individually for the rear driver or passenger side, this shock is ideal for Ford Super Duty owners looking for a reliable suspension upgrade with straightforward installation using existing mounts and hardware.