Rancho RS90000XL 0″ Rear Lift Shocks for 2005-2006 Ford F-450

Description
Rancho RS90000XL 0″ Rear Lift Shocks for 2005-2006 Ford F-450

Rancho RS9000XL 0″ Rear Lift Shocks for 2005-2006 Ford F-450

Part Number: RS999116

Summary: The Rancho RS9000XL series provides industry-leading versatility for heavy-duty applications. Featuring a 9-position manual tuning knob, these shocks allow owners to instantly adjust damping levels to compensate for varying payloads or towing requirements. This Tier 2 adjustable design ensures that your Ford F-450 maintains optimal ride quality whether unladen on the highway or fully loaded at the job site.

Features

• 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping control to ensure the vehicle is perfectly tuned for street, towing, or hauling.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased oil capacity to ensure cooler operating temperatures during heavy-duty use.
• Nitrogen Gas Charged: High-pressure gas charging provides a reduction in aeration and foaming to ensure consistent valving performance in demanding conditions.
• Protective Boot: A heavy-duty liquid metallic finish and included poly-vinyl boot provide superior protection against road debris to ensure long-term seal integrity.

Technical Specifications

Fitment

• 2005-2006 Ford F-450
• Note: Fitment verified for T100 models within the specified application range.

What’s Included

• Includes 2 Shocks
• Protective Poly-vinyl Boots
• Required Bushings and Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s MyRide technology allows for a massive 400% change in damping force between setting 1 and 9, offering true custom calibration.
• Performance Benefit: Eliminates the “one size fits all” compromise by allowing the driver to firm up the suspension for stability while towing and soften it for daily comfort.

Related Products

RS5000X (Front):
Rancho RS5000X 0" Front Lift Shocks for 2005-2006 Ford F-450

RS5000X (Rear):
Rancho RS5000X 0" Rear Lift Shocks for 2005-2006 Ford F-450

RS7MT (Front):
Rancho RS7MT 0" Front Lift Shocks for 2005-2006 Ford F-450

Front Only (Same Series):
Rancho RS90000XL 0" Front Lift Shocks for 2005-2006 Ford F-450

RS90000XL (Kit):
Rancho RS90000XL 0" Lift Shocks for 2005-2006 Ford F-450

RS5000X (Kit):
Rancho RS5000X 0" Lift Shocks for 2005-2006 Ford F-450

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. Simply turn the dial to your desired setting; lower numbers for a softer ride and higher numbers for increased firmness.

Will these shocks lift my Ford F-450?
No, these shocks are configured for 0″ of lift and are designed to replace factory-length units. They do not provide lift height but are built to handle the factory ride height of the vehicle.

What is the benefit of the larger 2.75-inch body?
The increased diameter allows for more fluid capacity, which helps dissipate heat faster. This prevents “shock fade” during heavy hauling or continuous use on rough terrain.