ICON Vehicle Dynamics Billet Rear Lower Link Kit for Toyota Land Cruiser 250 / Lexus GX550 / 4Runner

The ICON Vehicle Dynamics Billet Rear Lower Link Kit replaces the factory rear lower link arms on the 2024–2026 Toyota Land Cruiser 250 Series, 2024–2026 Lexus GX550, and 2025–2026 Toyota 4Runner with CNC-machined 6061 aluminum arms that deliver greater strength, on-vehicle adjustability, and reduced suspension bind compared to the stock units. One kit covers all three platforms.

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.

Strength Without the Weight Penalty

Each link arm is machined from 6061 aluminum billet and anodized for corrosion resistance. The billet construction resists deformation under lateral and articulation loads while keeping unsprung weight in check, both of which matter when the rear suspension is working hard on uneven terrain. The anodized finish adds a layer of protection against trail grime, moisture, and UV without requiring additional coatings or touch-ups.

On-Vehicle Adjustability via the Double Adjuster System

ICON's Double Adjuster System lets you dial in link arm length and pinion angle while the arms remain installed on the vehicle. Ride-height tuning or pinion-angle corrections after a lift do not require pulling the arms off the truck, which simplifies setup and makes it practical to dial in a build over multiple sessions. The PTFE-lined FK JMX16T rod ends at each end of the arm support the adjustment range while reducing deflection and increasing suspension articulation beyond what the factory rubber bushings allow.

Maintenance-Free Bushings and Trail-Ready Details

Dual-durometer bushings are pressed in at the factory and engineered to operate without periodic greasing. The two-durometer construction balances noise isolation against maximum angularity, so the arms move freely through the suspension's range of motion without the bushing bind that limits stock links at full droop or compression. Replaceable nylon rock sliders are integrated into the arm body to absorb contact with rocks and trail obstacles, protecting the aluminum link from direct impact. When the sliders wear, they swap out without replacing the entire arm. Each kit completed ICON's ICON1K real-world test cycle before release.

Features

• CNC-machined 6061 aluminum: billet construction, anodized for corrosion resistance
• PTFE-lined FK JMX16T rod ends: increased articulation and reduced deflection
• ICON Double Adjuster System: on-vehicle link length and pinion-angle adjustment
• Dual-durometer bushings: maintenance-free, maximum angularity, noise isolation
• Replaceable nylon rock sliders: protect the arm body from trail contact
• ICON1K tested: real-world validation cycle completed prior to release

Specifications

Who This Is For and Isn't

This kit suits owners of 2024–2026 Toyota Land Cruiser 250 Series, 2024–2026 Lexus GX550, or 2025–2026 Toyota 4Runner trucks who are building or refining a lifted suspension setup and need rear lower links that allow on-vehicle pinion-angle correction, greater articulation, and trail durability beyond what the factory arms provide.

This kit covers rear lower link arms only and does not include upper link arms, shocks, springs, or any other suspension component. It does not fit Toyota Land Cruiser 300 Series, earlier-generation 4Runner, or any Lexus GX other than the 2024–2026 GX550. California residents: this product carries a Proposition 65 warning for chemicals known to the State of California to cause cancer, birth anomalies, or other reproductive harm.

Common Questions

Which vehicles does this rear lower link kit fit?

The ICON Billet Rear Lower Link Kit (SKU 54003) fits the 2024–2026 Toyota Land Cruiser 250 Series, the 2024–2026 Lexus GX550, and the 2025–2026 Toyota 4Runner. It does not fit earlier model years of these vehicles or other platforms.

Can the link arm length be adjusted without removing the arms from the vehicle?

Yes. ICON's Double Adjuster System allows link arm length and pinion angle to be set while the arms remain installed on the vehicle, which simplifies ride-height tuning and pinion-angle correction after a lift without a full disassembly.

Do the bushings require greasing or scheduled maintenance?

The dual-durometer bushings in the ICON Billet Rear Lower Link Kit are designed to be maintenance-free. No periodic greasing is required, and the two-durometer construction maintains maximum angularity and noise isolation throughout the service life of the arm.

What are the nylon rock sliders, and can they be replaced if damaged?

The nylon rock sliders are integrated into the arm body to absorb contact with rocks and trail obstacles, protecting the aluminum link from direct impact. They are designed to be replaceable, so a worn or damaged slider can be swapped out without replacing the entire arm.

Does this kit include upper link arms or other suspension components?

This kit includes rear lower link arms only. Upper link arms, shocks, springs, and all other suspension components are sold separately. ICON offers a compatible Billet Upper Link Kit for these same platforms if upper links are also needed.