Rancho RS55187 RS5000X Rear Shock for 1990-02 Toyota 4Runner

Vehicle Fitment

• 1990-2002 Toyota 4Runner (Rear, 0-1.0" Lift Compatible)

Features

• Rancho RS5000X series gas-charged shock absorber
• Progressive Engagement valving for smoother damping
• Twin-tube internal design for reliable performance
• 16 mm nitro-carburized piston rod resists corrosion
• Full-displaced 35 mm bore for controlled motion
• Protective boot included to shield rod and seal
• Rubber bushings reduce vibration and noise
• Limited lifetime warranty from Rancho

Specifications

• Part Number: RS55187
• Series: RS5000X Gas Shock
• Position: Rear (Driver/Passenger Side)
• Compressed Length: 12.34 in
• Extended Length: 19.81 in
• Travel Length: 7.47 in
• Valving: Progressive Engagement (non-adjustable)
• Bushing Mounts: Loop bushing (lower) & stem mount (upper)
• Gas Charged: Yes

Included Components

• 1x Rancho RS5000X RS55187 Rear Shock Absorber
• 1x Protective shock boot
• Rubber mounting bushings and hardware included

Product Description

The is a high-quality RS5000X gas-charged rear shock designed specifically for the Toyota 4Runner from 1990 to 2002. Featuring a twin-tube design with Progressive Engagement valving, this shock delivers improved ride control and handling performance over worn OE units. The nitro-carburized piston rod and durable internal components help resist corrosion and wear, while the protective boot keeps contaminants away from seals, extending shock life.

This rear shock is engineered for stock suspension geometry and is compatible with 0-1.0" rear lift applications, making it suitable for both daily driving and light off-road use. With its balanced damping characteristics and direct-fit design, the RS55187 helps restore control and stability to the rear end of your 4Runner. Sold individually, it's ideal for replacing a single worn shock or building a matched pair for restore or mild upgrade projects.