KAX Front Upper Control Arms, 2–4-inch Lift

A front suspension setup that needs upper control arms for a lifted configuration calls for parts matched to the vehicle, not just a similar-looking replacement. This KAX kit includes two front upper control arms with ball joints and is listed for a range of Silverado, Sierra, Tahoe, Yukon, Escalade, Suburban, and Avalanche applications. Its stated lift range is 2–4 inches, but fitment depends on the exact model year and, for some vehicles, engine. Check those details before choosing it, the broad compatibility list has specific exceptions.

Key specifications

The kit pairs two front upper control arms with ball joints. KAX describes the arms as high-strength steel, with pre-greased ball joints, reinforced rubber bushings, and a corrosion-resistant coating. The stated lift range is 2–4 inches. The listing also describes the parts as direct OE replacements and says installation requires no drilling or modifications, though the exact fit still depends on the vehicle application.

The listed coverage includes select model years of Silverado 1500 and Sierra 1500, along with Tahoe, Suburban 1500, Yukon, Yukon XL 1500, Escalade, Escalade ESV, and Avalanche models. Some entries specify an engine, and the year ranges are not continuous for every vehicle. For example, the Silverado 1500 and Sierra 1500 listings include year-specific gaps. Treat the application list as a starting point, not a substitute for matching your truck or SUV’s year and engine.

Who it’s for

This setup is aimed at owners replacing front upper control arms on a vehicle that falls within the stated fitment list and lift range. The included ball joints mean the kit addresses the arm-and-joint assembly rather than just the arm itself. In everyday terms, it’s the kind of part you might select when refreshing the front suspension before returning a truck to regular driving, KAX says the bushings are designed to reduce vibration and noise.

A solid pick if your vehicle’s exact year and engine appear in the application details and you need both front upper arms. From the way it is set up, the corrosion-resistant coating and reinforced bushings are intended for ongoing road use. Not the best choice if you need a different lift range, a single arm, or confirmed fitment for an application not listed. The compatibility details are extensive, but they don’t establish that every trim or configuration within a model name will fit.

Included in the package

The package contains two 2–4-inch-lift front upper control arms with ball joints. The listing does not specify additional hardware or tools, so don’t assume they are included. It also describes installation as requiring no drilling or modifications, but that statement doesn’t remove the need to verify fitment or account for the work involved in a suspension repair.

Before you decide

Does the kit include both sides? Yes. The listing says the package includes two front upper control arms.

Which vehicles does it fit? It names selected Silverado and Sierra 1500, Tahoe, Suburban, Yukon, Yukon XL 1500, Escalade, Escalade ESV, and Avalanche applications. Some entries are limited by year or engine, so match your vehicle to the specific list.

Are installation changes required? KAX says the arms install without drilling or modifications. The listing doesn’t provide installation steps or confirm fitment for every vehicle configuration.

Should you buy it?

Choose this kit when you need a pair of front upper control arms for a listed vehicle and the 2–4-inch lift range matches your setup. The included ball joints and stated steel construction make it a more complete replacement approach than buying an arm alone, while the lack of detailed fitment by every trim means accuracy matters more than the broad vehicle names suggest. If your year or engine isn’t clearly covered, or your suspension setup falls outside the stated range, this listing doesn’t provide enough information to assume it will fit.