Rancho RS90000XL 4″ Lift Shocks for 2005-2010 Ford F-350 4WD Single Rear Wheel

Description
Rancho RS90000XL 4″ Lift Shocks for 2005-2010 Ford F-350 4WD Single Rear Wheel

Rancho RS9000XL 4″ Lift Shocks for 2005-2010 Ford F-350 4WD Single Rear Wheel

Part Number: RS999044 / RS999045

Summary: The Rancho RS9000XL series provides the ultimate in damping versatility for the Ford F-350 Super Duty. Featuring a globally recognized 9-position manual adjustment knob, these shocks allow drivers to instantly tune their ride quality from soft to firm. This Tier 2 adjustable technology solves the common conflict between unloaded highway comfort and the stiffness required for heavy towing or off-road stability. Engineered specifically for trucks with a 4-inch lift, these shocks ensure your suspension maintains full control across any terrain.

Features

• 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping to ensure custom ride control for towing, hauling, or daily driving.
• Large Diameter Body: A 2.75-inch liquid-filled shock body provides increased oil capacity to ensure cooler operating temperatures during heavy-duty use.
• Nitrogen Gas Charged: High-pressure gas optimization provides a reduction in aeration and foaming to ensure consistent performance under rapid cycling.
• Protective Boot: A heavy-duty red polyvinyl accordion boot provides a physical barrier for the piston rod to ensure long-term seal durability against road debris.

Technical Specifications

Fitment

• 2005-2010 Ford F-350 4WD
• Note: Fits models with Single Rear Wheels (SRW) ONLY. Excluding Chassis Cab models.

What’s Included

• Includes Full Set (See Below)
• (2) RS999044 Front Shocks
• (2) RS999045 Rear Shocks
• Protective Red Dust Boots

Why Choose This Product?

• Engineering Advantage: Rancho’s MyRide technology allows for the most adjustable damping profile in its class, moving beyond “one size fits all” suspension.
• Performance Benefit: Eliminates the harshness of a lifted suspension by allowing the driver to soften the valving for empty-bed commuting or firm it up for maximum trailer stability.

Related Products

RS5000X (Rear):
Rancho RS5000X 4" Rear Lift Shocks for 2005-2010 Ford F-350 4WD Single Rear Wheel
Rancho RS5000X 4" Lift Shocks for 2005-2010 Ford F-350 4WD Single Rear Wheel

RS5000X Full Kit:
Rancho RS5000X 4" Front Lift Shocks for 2005-2010 Ford F-350 4WD Single Rear Wheel

RS7MT Full Kit:
Rancho RS7MT 4" Front Lift Shocks for 2005-2010 Ford F-350 4WD Single Rear Wheel

RS90000XL (Rear) – Alternative:
Rancho RS90000XL 4" Rear Lift Shocks for 2005-2010 Ford F-350 4WD Single Rear Wheel

Full Kit (Same Series):
Rancho RS90000XL 4" Front Lift Shocks for 2005-2010 Ford F-350 4WD Single Rear Wheel

Frequently Asked Questions

Do these shocks create the 4 inches of lift?
No, these shocks do not create lift. They are specifically valved and length-configured to work with an existing 4-inch suspension lift kit.

How do I adjust the firmness of the shocks?
Each shock features a 9-position manual 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 fit my Dual Rear Wheel (Dually) F-350?
No, these are specifically designed for Single Rear Wheel (SRW) models and are not compatible with Chassis Cab or Dually configurations.