Rancho RS90000XL 4.5″ Lift Shocks for 2015-2019 Ford F-150 4WD

Description
Rancho RS90000XL 4.5″ Lift Shocks for 2015-2019 Ford F-150 4WD

Rancho RS9000XL 4.5″ Lift Shocks for 2015-2019 Ford F-150 4WD

Part Number: RS999838 / RS994287

Summary: The Rancho RS9000XL series provides industry-leading versatility for the 2015-2019 Ford F-150 through its globally recognized adjustable damping technology. Featuring a 9-position manual tuning knob, these shocks allow drivers to instantly transition from a soft street ride to a firm setting for heavy towing or off-road stability. Engineered to work specifically with 4.5-inch lift systems, this complete set ensures your leveled or lifted F-150 maintains optimal tire-to-road contact and ride quality regardless of the terrain.

Features

• 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping force to ensure the driver can customize ride stiffness for towing, hauling, or daily commuting.
• Large Shock Body: A massive 2.75-in. diameter reserve tube provides increased fluid capacity to ensure cooler operating temperatures during heavy work cycles.
• Nitrogen Gas Charged: High-pressure gas optimization provides a reduction in aeration and foaming to ensure consistent damping performance in high-duty environments.
• Polyurethane Bushings: Heavy-duty polyurethane material provides enhanced durability and pivot resistance to ensure long-term service life and reduced NVH (Noise, Vibration, and Harshness).

Technical Specifications

Fitment

• 2015-2019 Ford F-150 4WD
• Note: Compatible with 1 Piece Driveshaft and Rancho RS66519B System. Excluding Harley-Davidson, SVT Raptor, and 8200 GVW models.

What’s Included

• Includes Full Set (4 Shocks)
• 2 x RS999838 Front Adjustable Shocks
• 2 x RS994287 Rear Adjustable Shocks
• Protective Red Dust Boots

Why Choose This Product?

• Engineering Advantage: Rancho’s MyRide technology allows for the most precise manual tuning in the aftermarket, moving beyond “one size fits all” valving.
• Performance Benefit: Eliminates the compromise between comfort and control, giving F-150 owners the ability to stiffen the suspension for 4.5″ lift stability or soften it for empty-bed highway cruising.

Related Products

RS5000X (Rear):
Rancho RS5000X 4.5" Rear Lift Shocks for 2015-2019 Ford F-150 4WD

RS5000X (Front):
Rancho RS5000X 4.5" Front Lift Shocks for 2015-2019 Ford F-150 4WD

RS90000XL (Rear):
Rancho RS90000XL 4.5" Rear Lift Shocks for 2015-2019 Ford F-150 4WD

RS90000XL (Front):
Rancho RS90000XL 4.5" Front Lift Shocks for 2015-2019 Ford F-150 4WD

RS5000X (Kit):
Rancho RS5000X 4.5" Lift Shocks for 2015-2019 Ford F-150 4WD

Frequently Asked Questions

How do I adjust the firmness of these shocks?
The RS9000XL features a manual 9-position knob located on the shock body that can be turned by hand to increase or decrease damping resistance.

Will these shocks lift my Ford F-150 4.5 inches?
No, these shocks do not create lift. They are specifically valved and extended to accommodate Ford F-150 models already equipped with a 4.5-inch suspension lift kit.

Can I use these on a Raptor or a Heavy Duty 8200 GVW F-150?
No, these shocks are specifically excluded from SVT Raptor, Harley-Davidson editions, and models equipped with the 8200 GVW package.

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