4130 Upper Control Arms
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Description
Dirt King 4130 Upper Control Arms – Built to Solve Real Problems
If you drive a 2007–2018 GM 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 Your GM 1500 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.
Specifications
- 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. These UCAs offer more usable down travel compared to stock arms. Compatible with Dirt King, King, Fox, Bilstein, ADS, Icon, Eibach, and other OEM replacement coilovers. Do not install 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
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
Instructions
Compatibility
2007–2018 Chevy Silverado 1500 2WD / 4WD
2007–2018 GMC Sierra 1500 2WD / 4WD
*Not compatible with 2019+ GM 1500 models
*This product is designed to work with OEM-style and Dirt King suspension setups. Compatibility with other brands (shocks, coilovers, brackets) must be confirmed with the manufacturer before installation.
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Features
Features
- Twelve built-in holes perfect for tie straps for use in sand, snow, or dirt
- Grooved bottom to slide easily though different terrain types
- Curved ends to glide easily through terrain
- Universal adapting bowl to fit most UTVs
- Ultimately, we want the product to be the strongest and most durable in conditions such as sand, dirt or snow. Therefore, we have spent a lot of time researching and developing the Safe Sled. We used HDPE plastic, which is found to be the most durable material for off-road purposes, to stand against the pressure and load.
Safe Sled to pull your UTV out of any situation
Specification
Specification
- 93.2L*38.1W*18H per unit
- 5mm wall thickness , unit weight is approximately 7.5lbs (3.5-4kg)
