ICON V.S. 2.5 Aluminum Rear Shock Absorbers for 2025-2026 Toyota 4Runner 0-3" Lift with CDXS, Pair

The ICON V.S. 2.5 Aluminum Series rear shock absorbers are a vehicle-specific, remote-reservoir pair built for 2025–2026 Toyota 4Runner with 0–3 inches of rear lift over stock. Each shock uses a nitrogen-charged monotube design with a 2.5-inch hard-anodized aluminum body and ICON's CDXS dual-speed compression adjustment for independent tuning of high-speed and low-speed compression force.

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Dual-Speed Compression Tuning

ICON's CDXS (Compression Damping Dual Speed) system gives independent control over high-speed and low-speed compression force through two separate adjustment knobs, each with 10 detented settings. Low-speed adjustment shapes how the suspension responds to body roll, braking dive, and acceleration squat. That is the everyday handling character a driver notices on pavement and moderate trails. High-speed adjustment governs reaction to sharp impacts and high-velocity terrain hits. Having both axes independently adjustable means a driver can soften the ride for a loaded highway run and firm up high-speed response for a fast desert trail without those two settings fighting each other.

Internal Bump Zone for Bottom-Out Control

A 6061-billet aluminum manifold positioned a few inches below the shock's top cap creates an internal Bump Zone. As the shock approaches full compression, this zone increases damping force by 20 percent, resisting harsh bottom-outs without stiffening the mid-stroke ride. The remote reservoir extends fluid and nitrogen capacity, improving heat dissipation during sustained off-road use and reducing the shock fade that builds up on long, repeated compression cycles.

Built to Last and Be Serviced

The one-piece, impact-extruded aluminum cylinder is hard-anodized for corrosion resistance. The 7/8-inch shock shaft is induction-hardened and chrome-plated. Premium 5WT shock oil maintains consistent damping across a wide temperature range. PTFE-lined spherical bearings handle articulation at the mounting points. A rubber dust boot protects the shaft. Every V.S. 2.5 Aluminum Series shock is fully rebuildable and re-tunable, so the unit can be serviced and revalved rather than replaced when it eventually needs attention.

Features

• CDXS dual-speed compression adjustment: 10 detented settings each for independent high-speed and low-speed compression tuning
• Internal Bump Zone: 6061-billet aluminum manifold adds 20% damping force near full compression to resist bottom-outs
• Remote reservoir: nitrogen-charged monotube with external reservoir for improved heat dissipation and reduced fade
• Hard-anodized aluminum body: one-piece impact-extruded cylinder with corrosion-resistant finish
• 7/8" chrome-plated shaft: induction-hardened for durability; rubber dust boot included
• Fully rebuildable and re-tunable: serviceable design with PTFE-lined spherical bearings and application-specific mounting hardware included

Specifications

Who This Is For and Isn't

These shocks suit 2025–2026 Toyota 4Runner owners running 0–3 inches of rear lift over stock who want independent dual-speed compression tuning and a rebuildable, remote-reservoir shock for mixed street and off-road use.

These shocks are not compatible with 4Runner trims equipped with Adaptive Variable Suspension (AVS). Lift heights stated assume a stock-equipped vehicle; actual compatibility on a vehicle with existing suspension modifications should be confirmed before ordering. This listing covers rear shocks only; front shocks are sold separately.

Common Questions

Which 4Runner trims are excluded?

The ICON 57872XP rear shocks are not compatible with 2025–2026 Toyota 4Runner trims equipped with Adaptive Variable Suspension (AVS). Buyers should confirm whether their specific trim includes AVS before purchasing.

Do these shocks fit a 4Runner that already has a lift installed?

The 0–3 inch lift range on these ICON V.S. 2.5 rear shocks is measured from a stock-equipped vehicle. Compatibility on a 4Runner with existing suspension modifications is not guaranteed by that range and should be verified against the actual installed ride height before ordering.

What does CDXS adjustment actually change?

CDXS provides two separate adjustment knobs: one for low-speed compression, which governs body roll, dive, and squat, and one for high-speed compression, which governs sharp impacts and high-velocity terrain. Each knob has 10 detented positions, so both can be set independently without one affecting the other.

What is included in this purchase?

This listing includes a pair of ICON V.S. 2.5 Aluminum Series rear shocks (SKU 57872XP) with remote reservoirs, CDXS adjustment valves, rubber dust boots, PTFE-lined spherical bearings, and application-specific mounting hardware. Front shocks are not included.

Can these shocks be serviced or revalved later?

Yes. The ICON V.S. 2.5 Aluminum Series shocks are fully rebuildable and re-tunable, meaning the internals can be serviced and the valving adjusted by a qualified shop rather than requiring full replacement when the shocks eventually need attention.