Rancho RS9000XL Rear Suspension Shock

Jeep Grand Cherokee 99-04 4.0L I6

RS994260

Overview:

The Rancho RS9000XL Rear Suspension Shock is engineered to deliver superior control and performance for your 1999–2004 Jeep Grand Cherokee. Designed for drivers who demand versatility both on and off the road, this shock absorber features nine levels of adjustable damping, allowing you to tailor the firmness and responsiveness to your specific driving conditions. Whether you’re navigating rugged trails or cruising city streets, the RS9000XL provides a smooth, controlled ride that enhances vehicle stability and comfort.

Now in its fourth generation, the RS9000XL combines advanced engineering with durable materials to withstand harsh environments and heavy use. It is an ideal upgrade for stock or lifted Jeeps that tow, haul, or explore off-road terrain, offering a balance of ruggedness and refined performance.

Key Features:

Rancho’s RS9000XL shocks incorporate cutting-edge technology and thoughtful design to improve your Jeep’s suspension system. Key features include:

• Nine Levels of Adjustment: Easily customize damping and firmness with a simple, user-friendly knob for optimal on-road and off-road performance.
• Tri-Tube Body Design: A robust 2.38-inch tri-tube body filled with all-weather fluid ensures cooler operation and consistent damping across extreme temperatures from -40°F to 248°F.
• Durable Construction: Integrated bottom mounts enhance strength and durability, while a dual component 2K paint finish offers superior chip resistance and a sleek appearance.
• Low-Friction Seals: Self-lubricating seals retain gas and oil for quicker rebound and smoother compression, extending shock life and improving ride quality.
• Polyurethane Components: Rebound bumpers and bushings made from polyurethane, combined with graphite-filled fluon-banded pistons, reduce ride harshness and improve responsiveness.
• Nitrogen Gas Pressurization: Pressurized to 45 or 60 PSI to minimize air-to-oil mixture, reducing damping fade and foaming for consistent performance.
• Versatile Application: Suitable for both stock and lifted Jeep Grand Cherokees, accommodating towing, hauling, and off-road adventures.
• Limited Lifetime Warranty: Backed by Rancho’s commitment to quality and customer satisfaction.

Construction & Design:

The RS9000XL shock absorber is built with premium materials and advanced engineering to ensure long-lasting durability and performance. Its tri-tube body design provides enhanced heat dissipation, allowing the shock to operate efficiently under extreme temperature variations. The integrated bottom mounts improve structural integrity, reducing wear and increasing lifespan.

The shock’s dual component 2K paint finish not only protects against chips and corrosion but also gives it a refined, professional look. Internally, low-friction, self-lubricating seals maintain optimal gas and oil retention, supporting faster rebound and smoother compression cycles. Polyurethane rebound bumpers and bushings absorb impacts and reduce vibration, contributing to a more comfortable ride.

Installation & Fitment:

The Rancho RS9000XL Rear Suspension Shock is a direct fit replacement for 1999–2004 Jeep Grand Cherokee models, designed to install easily with standard tools and no modifications required. It fits both stock and lifted suspensions, making it a versatile upgrade for a variety of Jeep setups. Installation can typically be completed by experienced DIYers or professional technicians, restoring or enhancing your vehicle’s suspension performance quickly and reliably.

What's Included:

• One Rancho RS9000XL Rear Suspension Shock (Part # RS994260)
• Protective polyvinyl boot
• Adjustment knob for nine damping settings
• Installation instructions

Ideal For:

This shock absorber is perfect for Jeep Grand Cherokee owners who seek improved ride quality, enhanced vehicle control, and adjustable suspension performance. It is especially suited for those who:

• Drive both on-road and off-road regularly
• Use their Jeep for towing or hauling
• Have lifted suspensions or plan to lift their vehicle
• Require a durable, long-lasting shock that withstands extreme conditions
• Want the flexibility to fine-tune their suspension firmness

Rancho is a performance suspension and shock brand for trucks, SUVs, and Jeeps, offering shocks/struts, steering stabilizers, leveling kits, and lift systems built for trail and daily use. Their products are aimed at improving control and stability on rough terrain while maintaining everyday drivability—ideal for rigs that tow, haul, and still see dirt on the weekends.