Rancho RS5000X Rear lift Shocks for 1999-2004 Ford F-550 Super Duty 2WD/4WD

Description
Rancho RS5000X Rear lift Shocks for 1999-2004 Ford F-550 Super Duty 2WD/4WD

Rancho RS5000X Rear lift Shocks for 1999-2004 Ford F-550 Super Duty 2WD/4WD

Part Number: RS55126

Summary: The Rancho RS5000X series redefines the standard for heavy-duty twin-tube performance on the Ford F-550 Super Duty. Featuring a unique cross-tuned valve system, these shocks manage the high unsprung weight of commercial-grade trucks while maintaining smooth street comfort. Engineered to endure the rigors of both 2WD and 4WD configurations, the RS5000X provides a reliable damping solution that resists internal fade under heavy loads. This pair is specifically configured to accommodate the rear suspension requirements of your 1999-2004 Super Duty.

Features

• Cross-Tuned Technology: A specialized valve base system provides progressive engagement at varying speeds to ensure consistent control during heavy hauling.
• Gas Pressurization: Low-pressure nitrogen gas charge provides a reduction in oil foaming and aeration to ensure sustained damping performance.
• Double-Welded Mounts: Reinforced loop-style end mounts provide increased structural integrity to ensure long-term durability in high-stress environments.
• Polyurethane Bushings: High-density pivot points provide superior vibration isolation to ensure a quiet and comfortable cabin experience.

Technical Specifications

Fitment

• 1999-2004 Ford F-550 Super Duty 2WD/4WD
• Note: Fits rear position only. Designed for vehicles at factory height or configured for specific rear lift applications.

What’s Included

• Includes 2 Shocks (Pair)
• Protective Red Dust Boots
• Required Mounting Bushings and Washers

Why Choose This Product?

• Engineering Advantage: Rancho’s twin-tube design utilizes a larger 2.25-inch body to increase fluid capacity, effectively lowering operating temperatures compared to standard 2-inch shocks.
• Performance Benefit: Drivers will experience a significant reduction in “harshness” over expansion joints while maintaining the stability required for towing and commercial use.

Related Products

RS5000X (Rear) – Alternative:
Rancho RS5000X 0" Rear Lift Shocks for 1996-1999 Acura SLX
Rancho RS5000X Rear Shock Absorbers for 1992-2003 Dodge Ram 1500 Van 2WD

Front Only (Same Series):
Rancho RS5000X 0" Front Lift Shocks for 1996-1999 Acura SLX
Rancho RS5000X Front Coilovers for 2014-2018 GMC Sierra 1500 4WD
Rancho RS5000X Front Coilovers for 2011-2018 Ram 1500 4WD
Rancho 2.25" LEVEL IT Torsion Key System w/RS5000 Front Shocks For 2001-2010 GMC Sierra 2500HD 2WD/4WD
Rancho 2.25" LEVEL IT Torsion Key System w/RS5000 Front Shocks For 1999-2007 GMC Sierra 1500 4WD
Rancho RS5000X 1-2.5" Front Lift Shocks for 1995-2001 Ford Explorer 2WD/4WD
Rancho RS5000X Front Coilovers for 2007-2013 GMC Sierra 1500 2WD/4WD
Rancho RS5000X Front Coilovers for 2004-2008 Ford F150 2WD
Rancho RS5000X Front Coilovers for 2006-2008 Lincoln Mark LT 4WD
Rancho RS5000X Front Shock Absorbers for 1992-2003 Dodge Ram 2500 Van 2WD
Rancho 2.25" LEVEL IT Torsion Key System w/RS5000 Front Shocks For 2011-2019 Chevy Silverado 3500HD 2WD/4WD

RS90000XL (Rear):
Rancho RS90000XL 0" Rear Lift Shocks for 1996-1999 Acura SLX

RS90000XL (Front):
Rancho RS90000XL 0" Front Lift Shocks for 1996-1999 Acura SLX

RS90000XL (Kit):
Rancho RS90000XL 0" Lift Shocks for 1996-1999 Acura SLX

RS5000X (Kit):
Rancho RS5000X 0" Lift Shocks for 1996-1999 Acura SLX

RS7MT (Front):
Rancho RS7MT 1.75" Front Lift Shocks for 2015-2022 GMC Canyon 2WD/4WD
Rancho RS7MT Front Shocks for 2003-2024 Toyota 4Runner 4WD/2WD

Full Kit (Same Series):
Rancho RS5000X Front and Rear Shock Absorbers for 1992-2003 Dodge Ram 2500 Van 2WD

Frequently Asked Questions

Will these shocks help with my truck’s heavy towing capacity?
Yes, the RS5000X features cross-tuned valving specifically designed to manage the rebound and compression forces associated with heavy loads on the F-550 chassis.

Are the protective boots included with these shocks?
Yes, this set includes Rancho’s signature red dust boots to protect the piston rods from debris and corrosion.

Do these shocks create a lift for my Ford F-550?
No, these shocks do not create lift; they are dampers configured to work within the travel limits of your 1999-2004 F-550’s rear suspension.