ICON Vehicle Dynamics Billet Lower Trailing Arm Kit for FJ Cruiser / 4Runner / Land Cruiser / Lexus GX

The ICON Vehicle Dynamics Billet Lower Trailing Arm Kit replaces the factory rear lower links on the 2007–2014 Toyota FJ Cruiser, 2003–2024 Toyota 4Runner, 2008–2021 Toyota Land Cruiser (200 Series), and 2003–2023 Lexus GX with CNC-machined 6061 billet aluminum arms engineered for increased off-road ride quality and articulation.

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.

Stronger Where the Factory Arms Fall Short

The factory lower trailing arms on these platforms are a known weak point under sustained off-road use. They flex under load and limit suspension articulation. The ICON arms are machined from 6061 billet aluminum, a material that delivers high strength-to-weight ratio without the bulk of steel fabrication. The result is a rear link that resists the bending forces generated by aggressive terrain without adding unnecessary unsprung weight.

Rod Ends and Bushings Built for Real Articulation

Each arm uses large JMX16T PTFE-lined rod ends rated at over 40,000 lb of load capacity. That rating provides a substantial margin above the forces these arms encounter in trail use, so the joints remain tight and predictable rather than wearing loose over time. On the axle side, greaseable multi-piece polyurethane bushings allow maximum angularity while isolating noise and vibration. Both qualities together improve trail feel and on-road refinement.

On-Vehicle Adjustment and Trail Protection

ICON's Double Adjuster System lets the arm length be set while the arm is still bolted to the vehicle, which simplifies dialing in ride height and pinion angle after a lift without pulling the suspension apart. A replaceable nylon rock slider is built into the arm body to absorb contact with rocks and obstacles on the trail; when the slider wears, it can be replaced without replacing the arm itself.

Features

• 6061 CNC-Machined Billet Aluminum: high-strength, lightweight construction machined to vehicle-specific geometry
• JMX16T PTFE-Lined Rod Ends: over 40,000 lb load rating for long-term joint integrity
• Dual-Rate Greaseable Polyurethane Bushings: maximum axle-side angularity with minimal deflection and noise isolation
• ICON Double Adjuster System: on-vehicle length adjustment for ride height and pinion angle tuning
• Replaceable Nylon Rock Slider: protects the arm body from trail contact; slider is field-replaceable
• Vehicle-Specific High-Clearance Design: geometry reduces link contact with obstacles compared to stock routing

Specifications

Who This Is For and Isn't

These trailing arms suit owners of the 2007–2014 Toyota FJ Cruiser, 2003–2024 Toyota 4Runner, 2008–2021 Toyota Land Cruiser (200 Series), or 2003–2023 Lexus GX who are running a lifted suspension and want rear lower links with greater articulation, adjustability, and trail durability than the factory arms provide.

This kit does not fit Toyota Land Cruiser models outside the 200 Series, Lexus GX model years outside 2003–2023, or any other make or model. Ride height and pinion angle must be set at installation using the included Double Adjuster System.

Common Questions

Which vehicles does this trailing arm kit fit?

The ICON Billet Lower Trailing Arm Kit fits the 2007–2014 Toyota FJ Cruiser, 2003–2024 Toyota 4Runner, 2008–2021 Toyota Land Cruiser (200 Series), and 2003–2023 Lexus GX. It does not fit Land Cruiser models outside the 200 Series or Lexus GX years outside that range.

What is the load rating on the rod ends?

The ICON Billet Lower Trailing Arms use JMX16T PTFE-lined rod ends rated at over 40,000 lb of load capacity, providing a substantial safety margin above the forces these arms encounter in normal trail and off-road use.

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

Yes. The ICON Double Adjuster System built into these trailing arms allows length adjustment while the arms remain bolted to the vehicle, making it straightforward to tune ride height and pinion angle after a suspension lift without a full teardown.

What happens if the rock slider gets damaged on the trail?

The nylon rock slider on the ICON Billet Lower Trailing Arm is a separate, replaceable component. When it wears or sustains damage from trail contact, the slider can be replaced without replacing the arm itself, keeping long-term maintenance costs lower.

Is there a California Proposition 65 warning for this product?

Yes. The ICON Billet Lower Trailing Arm Kit carries a California Proposition 65 warning: this product contains chemicals known to the State of California to cause cancer, birth anomalies, or other reproductive harm.