Rancho RS90000XL 4″ Lift Shocks for 2004-2008 Ford F-150 4WD

Description
Rancho RS90000XL 4″ Lift Shocks for 2004-2008 Ford F-150 4WD

Rancho RS9000XL 4″ Lift Shocks for 2004-2008 Ford F-150 4WD

Part Number: RS999769

Summary: The Rancho RS9000XL series provides industry-leading versatility for drivers who demand total control over their suspension damping. Featuring a 9-position manual adjustment knob, these shocks allow you to instantly transition from a soft street ride to a firm setting optimized for heavy towing or aggressive off-road use. Specifically configured for 4-inch lifted applications, this set ensures your Ford F-150 or Lincoln Mark LT maintains proper suspension geometry and ride quality after a lift kit installation.

Features

• 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping force to ensure the perfect ride for any terrain or load requirement.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased oil capacity to ensure cooler operation and reduced fade during heavy-duty use.
• Nitrogen Gas Charged: High-pressure gas charging provides immediate response to road irregularities to ensure consistent tire-to-ground contact.
• Protective Boot: A heavy-duty red polyvinyl accordion boot provides a physical barrier for the piston rod to ensure long-term seal integrity against debris.

Technical Specifications

Fitment

• 2004-2008 Ford F-150 4WD
• 2006-2008 Lincoln Mark LT 4WD
• Note: Designed specifically for vehicles equipped with 4-inch suspension lift systems.

What’s Included

• (2) Rancho RS999769 Front Struts/Shocks
• (2) Rancho RS994287 Rear Shocks
• Protective Red Dust Boots
• Required Mounting Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s MyRide technology allows for a 400% change in damping force between setting 1 and 9, offering more adjustability than any other shock in its class.
• Performance Benefit: Eliminates the “one-size-fits-all” compromise of standard shocks, giving the driver the ability to firm up the rear for towing and soften the front for daily commuting.

Related Products

RS5000X (Rear):
Rancho RS5000X 4" Rear Lift Shocks for 2004-2008 Ford F-150 4WD

RS5000X (Front):
Rancho RS5000X 4" Front Lift Shocks for 2004-2008 Ford F-150 4WD

RS90000XL (Front):
Rancho RS90000XL 4" Front Lift Shocks for 2004-2008 Ford F-150 4WD

RS90000XL (Rear):
Rancho RS90000XL 4" Rear Lift Shocks for 2004-2008 Ford F-150 4WD

RS5000X (Kit):
Rancho RS5000X 4" Lift Shocks for 2004-2008 Ford F-150 4WD

Frequently Asked Questions

How do I adjust the stiffness of these shocks?
The RS9000XL features a manual tuning knob located at the base of the shock body. Simply turn the dial to your preferred setting (1 for softest, 9 for firmest).

Will these shocks lift my truck 4 inches?
No, these shocks do not create lift. They are specifically valved and extended to accommodate the travel requirements of a truck that already has a 4-inch lift kit installed.

Can I use these on a stock-height F-150?
No, these shocks are specifically sized for 4-inch lifted applications. Installing them on a stock-height vehicle may result in bottoming out and internal damage to the shock.