Fabtech 11-18 GM C/K2500HD/3500HD 2WD/4WD 4in Uniball Upper Control Arm Kit

If you're lifting your 2011-2019 Chevrolet Silverado 2500 HD or 3500 HD by 4 inches, upgrading the upper control arms is a smart move. These Fabtech arms replace your factory UCA's, which can be a weak point when you increase suspension travel or change the vehicle's stance. They're built to handle the demands of a lifted truck, offering more strength and better alignment capabilities than stock.

What sets these arms apart is the use of a 1-inch stainless steel uniball instead of a traditional ball joint. This setup is incredibly strong and helps regulate wheel motion more precisely in relation to the truck's body. Fabtech also builds in extra caster into the arms. This is a big help for alignment, especially when you're running a leveling kit, making it easier to get the wheels pointed straight and true. The arms are made from chromoly tubing, which is known for being stiff and reducing the flex you might find in stock arms, leading to a more direct and positive feel on the road. Plus, the uniball pin is heat-treated 4340 steel and fits right into the factory spindle taper, meaning you don't have to modify your spindle to install them. This makes it easier to return your truck to stock if you ever need to.

These arms are designed as direct replacements for your factory arms, but they offer significantly more strength and improved alignability. When paired with a 4-inch lift kit, they help ensure your suspension works correctly and your truck handles predictably. They can also allow for increased wheel travel, especially if you're using them with compatible Dirt Logic 2.5 coilover shocks.