Rancho RS90000XL 0″ Lift Shocks for 2005-2006 Ford F-550

Description
Rancho RS90000XL 0″ Lift Shocks for 2005-2006 Ford F-550

Rancho RS9000XL 0″ Lift Shocks for 2005-2006 Ford F-550

Part Number: RS999042 / RS999116

Summary: The Rancho RS9000XL series delivers industry-leading versatility for the Ford F-550, featuring a globally recognized 9-position manual tuning system. This adjustable technology allows drivers to instantly transition from a soft street ride to a firm setting optimized for heavy towing or hauling. Engineered to handle the high-stress demands of Super Duty work trucks, these shocks provide the ultimate solution for owners who require both daily comfort and professional-grade load control.

Features

• MyRide 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping force to ensure precise ride control across varying payloads.
• Large Diameter Body: A 2.75-inch heavy-duty body construction provides increased fluid capacity to ensure cooler operating temperatures during heavy-duty use.
• Nitrogen Gas Charged: High-pressure gas integration provides a reduction in aeration and foaming to ensure consistent damping response in demanding environments.
• Liquid Metallic Finish: A premium zinc-plated coating provides superior corrosion resistance to ensure long-term durability against road salt and debris.

Technical Specifications

Fitment

• 2005-2006 Ford F-550
• Note: Designed for vehicles at factory ride height (0″ Lift).

What’s Included

• Includes 4 Shocks (Full Set)
• Protective Dust Boots
• Installation Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s Tri-Tube design and 9-position valving offer a broader range of damping adjustment than standard monotube or fixed-valve shocks.
• Performance Benefit: Eliminates the “one size fits all” compromise, allowing the driver to stiffen the suspension for stable towing and soften it for unladen highway driving.

Related Products

RS5000X (Front):
Rancho RS5000X 0" Front Lift Shocks for 2005-2006 Ford F-550

RS5000X (Rear):
Rancho RS5000X 0" Rear Lift Shocks for 2005-2006 Ford F-550

RS7MT (Front):
Rancho RS7MT 0" Front Lift Shocks for 2005-2006 Ford F-550

RS90000XL (Rear):
Rancho RS90000XL 0" Rear Lift Shocks for 2005-2006 Ford F-550

RS90000XL (Front):
Rancho RS90000XL 0" Front Lift Shocks for 2005-2006 Ford F-550

RS5000X (Kit):
Rancho RS5000X 0" Lift Shocks for 2005-2006 Ford F-550

Frequently Asked Questions

How do I adjust the firmness of these shocks?
Each shock features a manual 9-position knob located at the base, allowing you to click through settings from 1 (softest) to 9 (firmest) without tools.

Will these shocks lift my Ford F-550?
No, these shocks are configured for a 0-inch lift and are designed to replace factory-length dampers while maintaining original ride height.

Can these shocks handle heavy commercial towing?
Yes, the RS9000XL is specifically engineered for heavy-duty applications, with a large body diameter and adjustable valving to mitigate sway and bounce under load.