Rancho RS994285 RS9000XL 9-Position Adjustable Rear Shock Absorber

The Rancho RS994285 is a rear shock absorber from the acclaimed RS9000XL series — globally recognized as the first nine-position manually adjustable ride control series in the off-road market. Engineered for trucks, SUVs, and Jeeps, this shock delivers a fully customizable ride whether you're on the highway, towing heavy loads, or tackling rugged off-road terrain.

Key Specifications:

• Compressed Length: 15.807 in.
• Extended Length: 24.906 in.
• Shock Stroke / Travel: 9.094 in.
• Position: Rear
• Body Diameter: Up to 2.75 in. tri-tube design for increased fluid capacity and cooler operation

Key Features:

• 9-Position Adjustment Knob — Dial in your preferred ride firmness from soft (positions 1–3, similar to OEM ride) to firm (positions 7–9, ideal for towing and heavy loads), delivering up to a 400% change in damping control from one end of the range to the other
• Nitrogen Gas Pressurized — Charged to minimize air-to-oil mixture and reduce damping performance fade and foaming
• Heavy-Duty 18mm Nitro-Carburized Rod — Provides increased scuffing resistance and corrosion protection
• 1-1/4 in. Sintered Iron Piston — Increases overall strength and structural integrity
• Graphite-Filled Fluon-Banded Piston — Absorbs ride harshness and enhances responsiveness to changing road conditions
• Polyurethane Rebound Bumper and Bushings — Reduces harsh terrain impacts felt in the vehicle cabin
• Low-Friction Self-Lubricating Seal — Retains gas and oil for quicker rebound and smoother compression
• Premium Liquid Metallic Finish with Polyvinyl Protective Boot — Safeguards the shock rod and oil seal for long-lasting reliability

Installation is straightforward — most RS9000XL shocks are designed to be installed rod end up and body down. To adjust, turn the knob counterclockwise to position 1 and fine-tune from there to achieve your desired ride quality. Ideal for stock or lifted trucks, SUVs, and Jeeps used for towing, hauling, or off-road driving.