Rancho RS9000XL Shock Absorbers
2007–2018 Jeep Wrangler / Wrangler JK Rear Shocks
RS999328
Overview:
The Rancho RS9000XL rear shocks deliver premium ride control and performance tailored specifically for Jeep Wrangler models from 2007 through 2018, including the Wrangler JK series. As the first nine-position manually adjustable shock absorber in the off-road market, these shocks provide versatile damping control for both on-road comfort and off-road capability. Designed for drivers who demand superior handling, towing capacity, and durability, the RS9000XL shocks enhance vehicle stability and responsiveness across a wide range of driving conditions.
Whether you’re navigating rugged trails, hauling heavy loads, or cruising city streets, these shocks offer a customizable suspension solution that adapts to your driving style and terrain. Backed by Rancho’s Limited Lifetime Warranty, the RS9000XL shocks are engineered to last and perform under extreme conditions.
Key Features:
Rancho RS9000XL shocks incorporate advanced technology and robust construction to optimize your Jeep’s suspension performance. Key features include:
- Nine-position adjustable damping: Easily customize firmness and ride control with a manual knob for on- and off-road flexibility.
- Tri-tube body design: Up to 2.75-inch diameter filled with all-weather fluid ensures cooler operation and consistent performance in temperatures from -40 to 248°F.
- 18mm nitro-carburized piston rod: Application-specific treatment resists scuffs and corrosion for enhanced durability.
- Double-welded loops and sintered iron piston: Reinforced stress areas and a 1.25-inch piston provide superior structural integrity.
- Low-friction, self-lubricating seal: Retains gas and oil for quicker rebound and smoother compression.
- Polyurethane rebound bumper and bushings: Absorb ride harshness and improve responsiveness to changing road conditions.
- Nitrogen gas pressurized to 120 PSI: Minimizes air-to-oil mixture, reducing damping fade and foaming during extended use.
- Protective polyvinyl boot and premium liquid metallic finish: Extend shock life by shielding components from dirt and corrosion.
Construction & Design:
The RS9000XL shocks are engineered with a rugged tri-tube body that balances strength and heat dissipation, critical for maintaining consistent damping performance under demanding conditions. The piston rod features an 18mm nitro-carburized finish, a specialized hardening process that significantly enhances resistance to wear and corrosion, ensuring longevity even in harsh environments.
Structural integrity is further reinforced with double-welded loops at high-stress points and a robust 1.25-inch sintered iron piston, designed to withstand the rigors of off-road driving and heavy-duty applications. The low-friction, self-lubricating seal technology retains gas and oil effectively, promoting smooth shock action and quicker rebound response.
Installation & Fitment:
These rear shocks are direct-fit replacements for a wide range of Jeep Wrangler models, including the 70th and 75th Anniversary editions, Rubicon, Sahara, Sport, Sport S, Unlimited variants, and the 2018 Wrangler JK series. Installation requires no special modifications, making it a straightforward upgrade for both stock and lifted vehicles. Designed to integrate seamlessly with factory suspension components, the RS9000XL shocks maintain proper ride height and geometry.
What's Included:
- One Rancho RS9000XL rear shock absorber (part # RS999328)
- Protective polyvinyl boot
- Installation hardware (if applicable)
- Limited Lifetime Warranty documentation
Ideal For:
The Rancho RS9000XL rear shocks are ideal for Jeep Wrangler owners who demand a versatile suspension capable of handling daily driving, towing, hauling, and serious off-road adventures. They suit both stock and lifted vehicles, providing enhanced control and comfort whether on highways or rugged trails. Enthusiasts seeking adjustable ride firmness and improved vehicle stability will find these shocks an excellent upgrade to their suspension system.
