Rancho RS55324 RS5000X Rear Shock Absorber Stock Height 2007-2021 Toyota Tundra

Vehicle Fitment

• 2007-2021 Toyota Tundra (All Trims - SR, SR5, Limited, Platinum, 1794 Edition, TRD Sport, TRD Off-Road, TRD Off-Road Premium, Trail, Nightshade, RWD/4WD)

Fitment Notes

• Rear position - Driver and Passenger side (sold individually, 1 shock per package)
• Designed for stock height (0-inch rear lift) vehicles only
• Fits both RWD (2WD) and 4WD drivetrain configurations
• Excludes Toyota Tundra models equipped with Electronic Adjustable Suspension
• Original factory rubber bushings and steel washers are reused for installation - rear shock hardware not separately included
• Factory shock mounting bolts are reused - not included
• All necessary washers, bushings, and nuts are included
• Install rod UP, body DOWN per Rancho installation guidelines

Features

• Cross Tuned technology - patented rebound valving system and advanced compression phase for improved on- and off-road handling
• Progressive Engagement Valving - custom-tuned compression cycle reduces harsh initial impacts at low speeds
• Nitrogen gas pressurized to 150 PSI - minimizes air-to-oil mixing to prevent foaming and damping fade
• 16mm nitro-carburized piston rod for corrosion and scuff resistance
• 35mm sintered iron piston with expanded piston area for heightened shock motion control
• Double-welded loops at high-stress mounting points for structural integrity
• Low-friction self-lubricating seal for consistent rebound and compression performance
• All-weather fluid rated from -40°F to 248°F for reliable operation in extreme conditions

Specifications

• Series: RS5000X
• Type: Twin-tube gas-pressurized shock absorber
• Position: Rear (Driver and Passenger side)
• Body OD: 2.25 inches
• Piston Rod Diameter: 16mm (nitro-carburized)
• Piston Size: 35mm sintered iron
• Gas Pressure: 150 PSI nitrogen
• Lift Range: 0 inches (stock height)
• Quantity: 1 shock per package
• Warranty: Limited Lifetime

Included Components

• 1x Rancho RS5000X Rear Shock Absorber with Polyvinyl Protective Boot
• 1x Hardware Kit (washers, bushings, nuts)

Product Description

The Rancho RS55324 is an RS5000X series rear shock absorber designed as a direct stock-height replacement for the 2007-2021 Toyota Tundra across all trim levels and both RWD and 4WD configurations. Rancho's Cross Tuned technology combines a patented rebound valving system with an advanced compression phase to deliver improved handling and ride quality on paved roads and off-road terrain alike. Progressive Engagement Valving further smooths out low-speed impacts, providing a comfortable and controlled ride whether the Tundra is used for daily driving, hauling, or light off-road use.

Built with a 16mm nitro-carburized piston rod, 35mm sintered iron piston, and double-welded mounting loops, the RS55324 is engineered for the demands of the Tundra's full-size truck platform. Nitrogen gas pressurization at 150 PSI suppresses damping fade and foaming, while all-weather fluid maintains consistent performance from -40°F to 248°F. Note that models with Electronic Adjustable Suspension are excluded. Factory rear mounting hardware (rubber bushings and steel washers) is reused from the OEM shock - factory mounting bolts are also reused. Sold individually - order in pairs for a complete rear axle replacement.