4130 Tubular Ball Joint Upper Control Arms, Silent Spin Bushings

If you drive a 2009–2025 Ram 1500 and are ready for a suspension upgrade, Dirt King upper control arms are the perfect choice. These Ram 1500 upper control arms are designed to fix the issues we kept running into—squeaky bushings, joints that require constant maintenance, and alignment geometry thrown off once a lift is added. Whether you’re daily driving, overlanding, rock crawling, or hitting desert trails, these UCAs perform at the highest level.

Dirt King upper control arms feature maintenance-free SilentSpin™ bushings that eliminate grease fittings and unwanted noise, paired with heavy-duty ProBearing Pro 4 ball joints for superior strength and high articulation. The sealed ball joints block out debris and are finished with anodized caps for long-lasting durability. 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 running our shocks or other aftermarket coilovers like King, Fox, Ride Shocks, and more.

• 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