ICON V.S. 2.0 Aluminum Series Rear Shock Absorber for Toyota FJ Cruiser / 4Runner / Lexus GX

The ICON Vehicle Dynamics V.S. 2.0 Aluminum Series Rear Shock Absorber is a vehicle-specific, nitrogen-charged monotube shock designed for 1–3 inches of rear lift on 2007–2014 Toyota FJ Cruiser, 2003–2024 Toyota 4Runner, and 2003–2023 Lexus GX platforms. Valving is tuned by ICON engineers specifically for these applications, balancing on-road composure with off-road capability. Sold individually; two shocks are required per vehicle.

Shipping: ICON parts ship direct from ICON Vehicle Dynamics, mostly by UPS Ground. Lead times vary by part and some items are built to order, so please allow extra time. We email tracking as soon as your order ships.

Vehicle-Specific Valving for Real-World Performance

The V.S. 2.0 Aluminum Series shock uses a one-piece linear/digressive piston with valving developed for the FJ Cruiser, 4Runner, and GX chassis. That specificity matters: a generic shock tuned to a middle-ground setting compromises both street manners and trail response, while vehicle-specific valving lets ICON optimize damping for the actual spring rates, geometry, and weight distribution of these platforms. The result is a shock that improves both daily driving comfort and off-road control without asking the driver to choose between them.

Aluminum Construction Built for Heat and Corrosion

The shock body and reservoir tubing are machined from 6063 anodized aluminum, which dissipates heat more effectively than steel-bodied shocks during sustained off-road use. Heat buildup causes fade, and fade means inconsistent damping when the terrain demands it most. Internal components including the rod end, top cap, and internals are 6061 aluminum. The 5/8-inch chrome-plated hardened steel shaft resists corrosion and pitting, and the 6063 anodized exterior resists the trail grime, moisture, and road salt that degrade lesser finishes over time.

Rebuildable and Revalveable for Long-Term Value

Every V.S. 2.0 Aluminum Series shock is 100% rebuildable and 100% revalveable. For a considered purchase in a performance suspension category, that matters: rather than replacing the entire shock when seals wear or when a future lift change calls for different damping characteristics, the shock can be rebuilt or revalved to match new requirements. Premium 5WT shock oil maintains consistent damping across a wide temperature range, and the nitrogen-charged monotube design with internal reservoir resists aeration that causes damping inconsistency under repeated compression cycles.

Features

• Nitrogen-charged monotube with internal reservoir: resists aeration for consistent damping under repeated off-road use
• Vehicle-specific valving: one-piece linear/digressive piston tuned for FJ Cruiser, 4Runner, and GX applications
• 6063 anodized aluminum body and reservoir: superior heat dissipation and corrosion resistance
• 5/8" chrome-plated hardened steel shaft: resists corrosion and pitting
• 100% rebuildable and 100% revalveable: serviceable for long-term use and future revalving
• Polyurethane bushings, zinc-plated sleeves, forged steel mounting stems: OE-style fitment at the mounting points

Specifications

Who This Is For and Isn't

This shock suits 2007–2014 Toyota FJ Cruiser, 2003–2024 Toyota 4Runner, and 2003–2023 Lexus GX owners running 1–3 inches of rear lift who want a vehicle-specific, rebuildable monotube shock for improved on- and off-road damping over stock.

This shock does not fit vehicles equipped with factory rear air suspension. Those applications require a rear coil conversion (ICON part 56110) and rear coil springs (ICON part 52700 or 52800) before installation. Vehicles equipped with the Kinetic Dynamic Suspension System (KDSS) additionally require the ICON rear track bar (ICON part 54200). This shock is not compatible with lift heights outside the 1–3 inch rear range. California residents: this product contains chemicals known to the State of California to cause cancer, birth anomalies, or other reproductive harm (Proposition 65).

Common Questions

How many shocks does one listing include?

The ICON V.S. 2.0 Aluminum Series Rear Shock Absorber (SKU 56505) is sold individually. A complete rear replacement requires two shocks; add two units to your cart.

Will this shock work with my factory rear air suspension?

No. Vehicles equipped with factory rear air suspension are not compatible with this shock as-is. A rear coil conversion using ICON part 56110 and rear coil springs (ICON part 52700 or 52800) are required before this shock can be installed on an air-suspension-equipped vehicle.

Do KDSS-equipped 4Runners or GX models need any additional parts?

Yes. Vehicles equipped with the Kinetic Dynamic Suspension System (KDSS) require the ICON rear track bar (ICON part 54200) in addition to this shock absorber. Check your build sheet or dealer records if you are unsure whether your vehicle has KDSS.

What lift height range is this shock designed for?

The ICON V.S. 2.0 Aluminum Series Rear Shock is valved and sized for 1–3 inches of rear lift over stock. It is not designed for use at stock ride height or with lift heights outside that range.

Can this shock be rebuilt or revalved later?

Yes. The ICON V.S. 2.0 Aluminum Series shock is 100% rebuildable and 100% revalveable, meaning worn seals can be replaced and damping characteristics can be adjusted by a qualified shock rebuilder without replacing the entire unit.