Take your Toyota 4Runner’s suspension performance to the next level with the CORE 4X4 Upper Control Arms. 

Designed to correct caster loss, improve clearance, and enhance suspension travel, these premium control arms ensure maximum stability and handling precision for lifted and leveled vehicles. Whether you're tackling extreme off-road trails or refining your daily driving experience, this upgrade provides exceptional strength, articulation, and durability.

What’s Included

• Upper Control Arms (T-4R-03-UCA2)
• Detailed Installation Instructions

Key Features Benefits

• Optimized Caster for Lifted Vehicles
  Welded ball joint cups are angled to restore lost caster, ensuring improved steering geometry and better handling.

• Superior Coilover Clearance Down Travel
  Offset-welded bushings provide increased clearance, preventing interference with coilovers and allowing greater suspension articulation.

• Heavy-Duty ½” Plate Steel Construction
  Built for maximum strength and durability, ensuring long-term performance in extreme off-road conditions.

• Greaseable Polyurethane Bushings
  Equipped with 90-degree grease fittings, allowing for easy maintenance and increased longevity.

Recommended Pairing

Enhance front-end stability and body roll control by adding the CORE 4X4 Front End Links (T-4R-2003-FEL2) for a complete front-end suspension solution.

Engineered for Maximum Performance

When lifting a Toyota 4Runner, Tacoma, FJ Cruiser, or GX, the spindle can shift, leading to rapid caster loss and poor handling. Factory control arms cause severe ball joint angles, resulting in premature wear and failure. The CORE 4X4 Upper Control Arms solve these issues by correcting alignment, improving coilover clearance, and reducing suspension stress. With precision-welded bushings and ball joint cups, these arms allow for smoother travel, enhanced durability, and maximum down travel for off-road performance.

Two-Stage Powder Coating

Each control arm undergoes a two-stage powder coating process: Zinc primer base coat for exceptional corrosion resistance. Durable topcoat, available in 10 custom colors, for a rugged yet stylish finish.

Made in the USA

Proudly manufactured in Orem, Utah, these control arms are built with precision engineering, rigorous testing, and strict quality control, ensuring superior durability and reliability.

Fitment

• Toyota 4Runner (2003–2024)
• Toyota Tacoma (2005–2023) – 6 Lug
• Toyota FJ Cruiser (2007–2014)
• Lexus GX470 (2003–2009)
• Lexus GX460 (2010–2023)

Conclusion

The CORE 4X4 Upper Control Arms are the ultimate upgrade for Toyota and Lexus off-road enthusiasts who demand improved alignment, better suspension travel, and extreme durability. With precision-engineered geometry, race-proven materials, and superior craftsmanship, these arms enhance both on-road comfort and off-road capability. Upgrade today and conquer any terrain with confidence.