The Ultimate UCA Upgrade for Your 4th-Gen Tacoma
Built to fix the problems that every lifted Tacoma eventually faces—squeaky bushings, high-maintenance joints, and poor alignment geometry—the Dirt King 4130 Upper Control Arms deliver quiet operation, maximum articulation, and long-term durability. Whether you're commuting, overlanding, rock crawling, or hammering desert trails, these UCAs are engineered to perform.
Key Features
SilentSpin™ Hybrid Bushings (Maintenance-Free)
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Greaseless design — no zerk fittings
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Zero squeaks, zero maintenance
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Free-spinning articulation for improved suspension movement
Pro 4 Series Ball Joints
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Forged SAE4140 housing
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76° of articulation for increased wheel travel
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Induction-hardened ball stud for extreme strength
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Sealed to keep out dust and debris
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Finished with anodized ball joint caps
4130 Chromoly Construction
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High-strength tubular design
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Reinforced gussets for added rigidity
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Professionally MIG-welded
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Black powder-coat finish for corrosion resistance
Geometry-Corrected for Lifted Tacomas
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Maintains proper alignment across 0–3” of lift
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Adds approx. +1” of down travel over factory
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Optimized caster for improved on-road stability and off-road control
Fully Rebuildable & Made in the USA
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All wear components are replaceable
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Built, tested, and assembled in the USA
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Delivered preassembled for a fast, hassle-free install
What’s Included
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4130 chromoly upper control arms (pair)
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Probearing SilentSpin™ hybrid bushings
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Heavy-duty Probearing Pro 4 ball joints
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Ball joint caps
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Zinc-plated hardware
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Dirt King sticker pack
Fitment
Vehicle Compatibility:
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2024–2025 Toyota Tacoma (2WD / 4WD)
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Works with OEM suspension and Dirt King shocks
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Compatible with most aftermarket coilovers (King, Fox, Icon, etc.)*
Wheel & Tire Requirements:
Note: Do not combine coil spacers with extended-length shocks.
Why Choose Dirt King UCAs?
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Quiet, maintenance-free performance
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Corrected suspension geometry for lifted trucks
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Increased travel for better off-road capability
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Stronger, smoother, and more durable than OEM
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Perfect for daily drivers and hardcore off-road builds
Specs at a Glance
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Amount of Lift Supported: 0–3”
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Track Width: Stock
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Construction: 4130 chromoly tubing
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Bushings: SilentSpin hybrid bushings
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Joints: Probearing Pro 4 ball joints
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Finish: Black powder coat / zinc-plated hardware
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Weight: ~9.53 kg (pair)
Build With Confidence
Designed, welded, and assembled in the USA, the Dirt King 4130 UCAs are built to handle real off-road abuse—without sacrificing daily comfort. If you want reliability, quiet operation, and improved performance for your 4th-gen Tacoma, this is the upgrade.
