Rancho RS55397 RS5000X Rear Shock 0-1.5" Lift for03-23 Toyota 4Runner/FJ Cruiser

Vehicle Fitment

• 2003-2023 Toyota 4Runner (Rear, 0-1.5" Lift / Stock Height)
• 2007-2014 Toyota FJ Cruiser (Rear, 0-1.5" Lift / Stock Height)

Features

• RS5000X Series gas-charged twin-tube rear shock absorber
• Progressive Engagement Valving for smoother damping and ride control
• Tuned Compression Control Valve regulates rear ride response
• 35 mm sintered iron piston for structural integrity
• 16 mm nitro-carburized piston rod resists corrosion and wear
• Protective red polyvinyl boot guards against dirt and debris
• Rubber bushings to reduce noise and vibration transmission
• Designed for stock or slightly lifted rear suspension (up to ~1.5")

Specifications

• Part Number: RS55397
• Series: Rancho RS5000X
• Application: Rear Shock Absorber
• Rear Lift Range: 0-1.5" (stock to mild lift)
• Compressed Length: ~14.04"
• Extended Length: ~22.11"
• Stroke/Travel: ~8.07"
• Upper Mount: Stem Mount (S5)
• Lower Mount: Loop Bushing & Sleeve (LS68)
• Gas Charged: Yes
• Boot: Protective Dust Boot Included

Included Components

• 1x Rancho RS55397 RS5000X Rear Shock Absorber
• Protective red dust boot
• Rubber mounting bushings

Product Description

The Rancho RS55397 RS5000X Rear Shock Absorber is designed to enhance rear suspension performance for *Toyota 4Runner* and *Toyota FJ Cruiser* models from 2003 through 2023, accommodating stock ride heights and mild lifts up to about 1.5". Part of Rancho's RS5000X Series, it combines Progressive Engagement Valving and a Tuned Compression Control Valve to absorb impacts smoothly while maintaining consistent handling over varied terrain.

Built with a nitro-carburized piston rod and a large 35 mm sintered iron piston, RS55397 offers strength and durability in demanding conditions. Rubber bushings and a protective dust boot help reduce noise and protect internal components from dirt and debris. Whether on daily roads or light off-road trails, RS55397 delivers balanced ride comfort and control. Always verify exact year, drivetrain, and lift configuration before installation to ensure proper fitment.