Dirt King's New 4130 Upper Control Arms

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March 24, 2025 | By Dirt King Fabrication

New 4130 Upper Control Arms Deliver a True Performance Upgrade

Built for Strength, Silence, and Serious Suspension Travel

If you're running a Tacoma and thinking about a suspension upgrade, this one’s for you. Our 4130 Upper Control Arms were made to solve the exact issues we kept running into ourselves — squeaky bushings, joints that need constant attention, and geometry that gets thrown off the second you add a lift.

These arms are designed specifically for 2005–2023 Toyota Tacomas (2WD or 4WD), and they’re built to handle it all — daily commutes, overlanding, rock crawling, and wide-open desert runs. If that sounds like your kind of driving, the new 4130 UCAs are for you.

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SilentSpin™ Bushings – No Grease. No Squeaks.

Let’s be real — nobody wants to deal with squeaky bushings or messy grease fittings. That’s why we developed our SilentSpin™ hybrid bushings. They’re maintenance-free, fully sealed, and totally silent. Rain, dust, mud, daily driving — doesn’t matter. These stay quiet and responsive the whole time.

SilentSpin Bushing Detail
Ball Joint Installed on Tacoma

Pro 4 Ball Joints – Strength Meets Style

Every arm comes preloaded with our Pro 4 heavy-duty ball joints. You’ll get up to 38° of articulation and strength that holds up against hard side loads. They’re fully sealed, so you don’t have to worry about dirt getting in — and we added anodized caps to finish it off clean.

Designed for Lifted Tacomas

Running a lift? No problem. These arms correct your suspension geometry so your alignment stays dialed — even with 0–3” of lift. You’ll also pick up about an inch more down travel compared to stock, which makes a huge difference with aftermarket coilovers from King, Fox, Icon, and more.

Why Go Dirt King?

  • SilentSpin™ bushings — no squeaks, no grease, no drama
  • Pro 4 ball joints with sealed dust caps
  • Rebuildable, USA-made construction
  • Precision-welded 4130 chromoly tubing
  • Shipped preassembled for a faster install

Upgrade Your Tacoma With Confidence

If you're building a Tacoma that works hard on weekdays and explores hard on weekends, the 4130 Upper Control Arms are the perfect upgrade. Built with pride in the USA, backed by real-world testing, and engineered for the long haul—this is the last set of UCAs you’ll ever need.

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Tacoma with Dirt King Control Arms

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