Rancho RS90000XL 4″ Rear Lift Shocks for 1999-2004 Ford F-350 4WD

Description
Rancho RS90000XL 4″ Rear Lift Shocks for 1999-2004 Ford F-350 4WD

Rancho RS9000XL 4″ Rear Lift Shocks for 1999-2004 Ford F-350 4WD

Part Number: RS999261

Summary: The Rancho RS9000XL series provides industry-leading versatility for heavy-duty applications. Featuring a 9-position manual tuning knob, these shocks allow Ford F-350 owners to instantly adjust damping levels to compensate for varying loads and terrain. Whether you are towing a heavy fifth-wheel or driving unloaded on the highway, this Tier 2 adjustable shock provides the specific ride control required for 4-inch lifted applications.

Features

• MyRide 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping to ensure the perfect balance between street comfort and heavy-duty towing stability.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased oil capacity to ensure consistent cooling and reduced fade during extreme use.
• Nitrogen Gas Charged: High-pressure gas charge provides a reduction in air-to-oil mixture (aeration) to ensure immediate response and precise damping control.
• Heavy-Duty Piston: A 1.25-inch sintered iron piston provides structural integrity and increased surface area to ensure long-term durability under high-stress conditions.

Technical Specifications

Fitment

• 1999-2004 Ford F-350 4WD
• Note: Configured for use with Rancho Suspension systems.

What’s Included

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

Why Choose This Product?

• Engineering Advantage: The RS9000XL is engineered with a massive shock body and a manual bypass valve, allowing it to outperform standard fixed-rate shocks in heat dissipation and load management.
• Performance Benefit: Drivers gain the ability to “dial in” their ride, switching from a soft setting for unloaded commuting to a firm setting for maximum control while hauling.

Related Products

RS5000X (Front):
Rancho RS5000X 4" Front Lift Shocks for 1999-2004 Ford F-350 4WD

RS5000X (Rear):
Rancho RS5000X 4" Rear Lift Shocks for 1999-2004 Ford F-350 4WD

RS7MT (Front):
Rancho RS7MT 4" Front Lift Shocks for 1999-2004 Ford F-350 4WD

Front Only (Same Series):
Rancho RS90000XL 4" Front Lift Shocks for 1999-2004 Ford F-350 4WD

RS5000X (Kit):
Rancho RS5000X 4" Lift Shocks for 1999-2004 Ford F-350 4WD

RS90000XL (Kit):
Rancho RS90000XL 4" Lift Shocks for 1999-2004 Ford F-350 4WD

Frequently Asked Questions

How do I adjust the settings on these shocks?
The RS9000XL features a manual knob located at the base of the shock; simply turn the dial to your desired setting (1 for softest, 9 for firmest).

Do these shocks create a 4-inch lift?
No, these shocks do not create lift. They are specifically valved and length-configured for Ford F-350 vehicles already equipped with a 4-inch rear lift system.

Are the dust boots included?
Yes, these shocks come standard with Rancho’s signature red protective boots to keep the piston rod safe from debris.