Rancho RS90000XL 0″ Rear Lift Shocks for 1984-1991 Jeep Grand Wagoneer SJ 4WD

Description
Rancho RS90000XL 0″ Rear Lift Shocks for 1984-1991 Jeep Grand Wagoneer SJ 4WD

Rancho RS9000XL 0″ Rear Lift Shocks for 1984-1991 Jeep Grand Wagoneer SJ 4WD

Part Number: RS999113

Summary: The Rancho RS9000XL series delivers industry-leading versatility for the Jeep Grand Wagoneer SJ and AM General FJ-9. Featuring a globally recognized 9-position manual adjustment knob, these shocks allow drivers to instantly transition from a soft street ride to a firm setting for heavy hauling or towing. Designed for vehicles at stock ride height, these shocks utilize a large-diameter body to increase fluid capacity and maintain consistent damping performance under load.

Features

• 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping force to ensure the perfect ride quality for any terrain or load requirement.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased oil capacity to reduce fluid oxidation and ensure consistent cooling during heavy-duty use.
• Nitrogen Gas Charged: High-pressure gas charging provides a faster response rate and minimizes aeration to ensure fade-free performance.
• Protective Boot: A heavy-duty red polyvinyl accordion boot provides a physical barrier for the piston rod to ensure long-term seal integrity.

Technical Specifications

Fitment

• 1984-1991 Jeep Grand Wagoneer SJ 4WD
• 1984-1991 AM General Model FJ-9
• Note: Fits models with 0″ of rear lift height.

What’s Included

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

Why Choose This Product?

• Engineering Advantage: Unlike standard “one-size-fits-all” shocks, the RS9000XL features a tri-tube design and user-adjustable valving that adapts to the specific weight and cargo needs of vintage SJ platforms.
• Performance Benefit: Drivers gain total control over their suspension stiffness, eliminating the “wallowy” feel common in older 4WD vehicles while maintaining comfort on the highway.

Related Products

RS5000X (Front):
Rancho RS5000X 0" Front Lift Shocks for 1984-1991 Jeep Grand Wagoneer SJ 4WD

RS7MT (Front):
Rancho RS7MT 0" Front Lift Shocks for 1984-1991 Jeep Grand Wagoneer SJ 4WD

RS7MT (Kit):
Rancho RS7MT 0" Lift Shocks for 1984-1991 Jeep Grand Wagoneer SJ 4WD

RS90000XL (Kit):
Rancho RS90000XL 0" Lift Shocks for 1984-1991 Jeep Grand Wagoneer SJ 4WD

RS5000X (Kit):
Rancho RS5000X 0" Lift Shocks for 1984-1991 Jeep Grand Wagoneer SJ 4WD

Frequently Asked Questions

How do I adjust the firmness of these shocks?
These shocks feature a manual 9-position knob located at the base of the shock body. Simply turn the dial to your desired setting; higher numbers provide a firmer ride for towing, while lower numbers offer a softer feel for daily driving.

Will these shocks lift my Jeep Grand Wagoneer?
No, these shocks are configured for vehicles with 0 inches of rear lift. Shocks are designed to control the movement of the suspension and do not provide lift height themselves.

Are these shocks sold as a pair?
Yes, this specific SKU (2xRS999113) includes a pair of two (2) rear shocks for a complete axle installation.