2020-2025 GM HD Upper Control Arm Kit (KRUCA20)

Engineered for Real-World Performance.

The Kryptonite Upper Control Arm Kit is a heavy-duty upgrade engineered to outperform your stock GM upper control arms in every way. Built from high-strength boxed steel, laser cut and TIG welded in the USA, these arms are a direct fit upgrade that improves strength, alignment control, and suspension travel.

Whether you're running stock suspension or have a mild to moderate lift, these control arms are designed to correct upper ball joint angles, reduce binding, and ensure long-term durability. Kryptonite UCAs also feature premium bolt-in ball joints and polyurethane bushings,pre-greased and ready to install.

If your factory arms are worn out or your lifted truck feels sloppy up front, this is the upgrade you’ve been looking for.

• Precision laser-cut and machine-formed steel construction
• Fully boxed design for maximum strength
• Direct replacement for factory UCA with superior strength and geometry
• Bolt-on installation with all hardware included
• Compatible with factory or aftermarket shocks
• Proudly Made in the USA
• Lifetime Warranty – no fine print