Rancho RS90000XL 4″ Rear Lift Shocks for 1999-2004 Ford F-250 4WD

Description
Rancho RS90000XL 4″ Rear Lift Shocks for 1999-2004 Ford F-250 4WD

Rancho RS9000XL 4″ Rear Lift Shocks for 1999-2004 Ford F-250/F-350 4WD

Part Number: RS999261

Summary: The Rancho RS9000XL series provides industry-leading versatility for heavy-duty trucks through its globally recognized adjustable damping technology. Featuring a 9-position manual tuning knob, these shocks allow owners to instantly transition from a soft street ride to a firm setting for heavy towing or off-road stability. Engineered to accommodate 4 inches of rear lift, they solve the problem of compromised ride quality in leveled or lifted Super Duty applications by putting damping control directly in the driver’s hands.

Features

• 9-Position Tuning Knob: A manual adjustment dial provides nine distinct levels of damping force to ensure the perfect ride for daily commuting, towing, or hauling.
• Large Diameter Body: A massive 2.75-in. (70mm) body diameter provides increased oil capacity to ensure cooler operating temperatures and consistent performance during heavy-duty use.
• Nitrogen Gas Pressurization: High-pressure gas charging provides a barrier between the oil and gas to ensure reduced aeration and fade-free response.
• Protective Boot: A heavy-duty red polyvinyl accordion boot provides a physical barrier for the piston rod to ensure long-term seal integrity against road debris.

Technical Specifications

Fitment

• 1999-2004 Ford F-250 4WD
• 1999-2004 Ford F-350 4WD
• Note: Configured for 4″ rear lift; intended for use with Rancho Suspension systems.

What’s Included

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

Why Choose This Product?

• Engineering Advantage: The RS9000XL is the pioneer of manual adjustability, utilizing a tri-tube design that allows for massive fluid displacement and precise valving changes.
• Performance Benefit: Eliminates the “one size fits all” compromise of standard shocks, allowing you to stiffen the rear end when a trailer is attached and soften it for unladen highway driving.

Related Products

RS5000X (Rear):
Rancho RS5000X 4" Rear Lift Shocks for 1999-2004 Ford F-250 4WD

RS5000X (Front):
Rancho RS5000X 4" Front Lift Shocks for 1999-2004 Ford F-250 4WD

RS7MT (Front):
Rancho RS7MT 4" Front Lift Shocks for 1999-2004 Ford F-250 4WD

Front Only (Same Series):
Rancho RS90000XL 4" Front Lift Shocks for 1999-2004 Ford F-250 4WD

RS5000X (Kit):
Rancho RS5000X 4" Lift Shocks for 1999-2004 Ford F-250 4WD

RS90000XL (Kit):
Rancho RS90000XL 4" Lift Shocks for 1999-2004 Ford F-250 4WD

Frequently Asked Questions

How do I adjust the firmness of these shocks?
These shocks feature a 9-position manual knob located at the base of the shock body. You can simply turn the dial by hand to increase or decrease the damping resistance.

Will these shocks lift my Ford F-250?
No, these shocks do not create lift. They are specifically lengthened and valved to work with a vehicle that has already been equipped with a 4-inch rear lift kit.

Are these shocks nitrogen charged?
Yes, the RS9000XL utilizes nitrogen gas pressurization to minimize oil foaming and ensure consistent performance under high-stress conditions.