Description
Dirt King 4130 Upper Control Arms – Built to Solve Real Problems
If you drive a 2019–2025 Silverado or Sierra 1500 (2WD or 4WD) and you’re ready for a suspension upgrade, these 4130 UCAs are for you. We made them to tackle the exact issues we kept running into ourselves—squeaky bushings, joints that need constant attention, and geometry thrown off as soon as you add a lift. Whether you’re daily driving, overlanding, rock crawling, or chasing desert trails, these UCAs handle it all.
These arms feature maintenance-free SilentSpin™ bushings that eliminate grease fittings and unwanted noise, along with heavy-duty Probearing Pro 4 ball joints for high articulation and superior strength. The ball joints are sealed to block out debris and finished with anodized caps. Built to maintain proper alignment from 0–3″ of lift, these arms also add roughly an inch of down travel compared to stock, a must-have when paired with our shocks or other aftermarket coilovers like King, Fox, Icon, and more.
Why Go Dirt King?
- SilentSpin™ bushings — no squeaks or maintenance
- Pro 4 ball joints with sealed dust caps
- Rebuildable, USA-made construction
- Precision-welded 4130 chromoly tubing
- Shipped preassembled for faster installs
Upgrade With Confidence
Built and tested in the USA, these 4130 UCAs are engineered for the long haul—perfect for rigs that work hard on weekdays and explore even harder on weekends. It’s the last set of upper control arms you’ll ever need.
Silverado UCA Specifications:
- Wheel Travel: Additional 1” of down travel compared to stock
- Amount of Lift: Allows for 0-3” of lift
- Track Width: Stock
- Maximum Backspacing: 4.75”
- Minimum Rim Size: 17”
Wheel Travel / Lift
The Dirt King upper control arms must be paired with aftermarket coilover shocks to lift the vehicle. The Dirt King arms offer an additional 1” of down travel compared to the stock upper control arms. These arms are compatible Dobinsons, King, Fox, Bilstein, ADS and Icon coilovers. Do not install these upper control arms with coil spacers paired with extended length aftermarket shocks.
What’s Included?
- 4130 Chromoly upper control arms
- Probearing SilentSpin Hybrid bushings
- Probearing Pro 4 Superior Performance Ball Joints
- Ball joint caps
- Dirt King sticker pack
- Installation instructions
Chevy Silverado UCA Features:
- Pro 4 Series Ball Joints – Forged SAE4140 housing, 38° of articulation, and induction-hardened ball stud for maximum strength and smoother steering feel
- SilentSpin Hybrid Bushings – Maintenance-free, greaseless, and engineered for quiet, free-spinning articulation
- Geometry Corrected – Improved caster and pivot angles deliver better handling and control with up to 3” of lift
- 4130 Chromoly Construction – Built with high-strength tubing and reinforced gussets for extreme durability
- Fully Rebuildable Design – All wear items are replaceable for long-term reliability
- Corrosion-Resistant Finishes – Zinc-plated hardware and black powder coat protect against the elements
- Professionally MIG Welded – Ensures structural integrity for demanding off-road use
- Preassembled – Quick, hassle-free installation with no guesswork
- Made in the USA – Built with pride and quality you can trust
Compatibility:
2019-2025 Chevy Silverado 2WD / 4WD
2019-2025 GMC Sierra 2WD / 4WD
Compatible with Trail Boss package
Want to learn more about Dirt King Fabrication?
https://dirtkingfabrication.com/pages/disclaimer
https://dirtkingfabrication.com/pages/returns
Vehicle Fitment:
2020 Chevy Silverado
2021 Chevy Silverado
2022 Chevy Silverado
2023 Chevy Silverado
2024 Chevy Silverado
2025 Chevy Silverado
2020 GMC Sierra 1500
2021 GMC Sierra 1500
2022 GMC Sierra 1500
2023 GMC Sierra 1500
2024 GMC Sierra 1500
2025 GMC Sierra 1500
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