Silentspin hybrid bushings: Eliminates squeaks and maintenance for quieter, longer-lasting performance
Pro 4 series sealed ball joints: Provides high articulation and superior strength while blocking debris
4130 chromoly construction: Ensures extreme durability and resistance to wear
Rebuildable design: All wear components are replaceable for long-term reliability
Preassembled shipping: Enables quick, hassle-free installation with no guesswork
Summarized by Shop
Description Dirt King 4130 Upper Control Arms – Built to Solve Real Problems
If you drive a 2009-2025 Ram 1500 and 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 a
Material
4130 chromoly steel
Bushing Type
Silentspin hybrid (maintenance-free, greaseless)
Ball Joint Type
Pro 4 series, sealed dust caps
Articulation
38–76 inches (model dependent)
Lift Capacity
Up to 0.3–3 inches
Minimum Rim Size
17 inches
Maximum Backspacing
4.75 inches
Compatibility
2009-2025 Ram 1500 4WD (excludes TRX and RHO models)