Rancho RS90000XL 5-6″ Rear Lift Shocks for 1999-2004 Ford F-250 4WD

Description
Rancho RS90000XL 5-6″ Rear Lift Shocks for 1999-2004 Ford F-250 4WD

Rancho RS9000XL 5-6″ Rear Lift Shocks for 1999-2004 Ford F-250/F-350 4WD

Part Number: RS999045

Summary: The Rancho RS9000XL series defines versatility for heavy-duty trucks, featuring a globally recognized 9-position manual tuning knob. This adjustable damping system allows Ford Super Duty owners to instantly transition from a soft street ride to a firm setting optimized for heavy towing or off-road stability. Engineered to accommodate 5 to 6 inches of rear lift, these shocks solve the compromise between daily comfort and work-ready performance.

Features

• 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping to ensure the perfect ride quality for any load or terrain.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased fluid capacity to ensure cooler operation during high-stress hauling.
• Nitrogen Gas Charged: High-pressure gas integration provides a reduction in aeration and foaming to ensure consistent damping performance.
• Heavy-Duty Rod: An 18mm nitro-carburized piston rod provides exceptional structural rigidity to ensure long-term durability in harsh environments.

Technical Specifications

Fitment

• 1999-2004 Ford F-250 Super Duty 4WD
• 1999-2004 Ford F-350 Super Duty 4WD
• Note: Fits models with Single Rear Wheels (SRW) only. Excluding Chassis Cab models.

What’s Included

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

Why Choose This Product?

• Engineering Advantage: Unlike “one-size-fits-all” shocks, the RS9000XL series provides user-adjustable valving, allowing the driver to compensate for changing payload weights on the fly.
• Performance Benefit: By eliminating the bounce associated with lifted leaf springs, these shocks provide a more controlled, “planted” feel whether the truck is empty or fully loaded.

Related Products

RS5000X (Rear):
Rancho RS5000X 5-6" Rear Lift Shocks for 1999-2004 Ford F-250 4WD

Front Only (Same Series):
Rancho RS90000XL 5-6" Front Lift Shocks for 1999-2004 Ford F-250 4WD

RS90000XL (Kit):
Rancho RS90000XL 5-6" Lift Shocks for 1999-2004 Ford F-250 4WD

Frequently Asked Questions

How do I adjust the settings on these shocks?
Simply turn the 9-position knob located at the base of the shock body. Position 1 is the softest for empty commuting, while Position 9 is the firmest for maximum control during towing.

Will these shocks lift my truck?
No, these shocks do not create lift. They are specifically configured and valved for Ford F-250/F-350 models that already have a 5 to 6-inch rear lift kit installed.

Do these include the protective boots?
Yes, these shocks come standard with Rancho’s signature red protective boots to keep the piston rod safe from road debris and contaminants.