Especially for those that are upgrading your Chevy with a set of Kryptonite's Upper Control Arms that already include their beefy upper ball joints, you'll probably want to replace the lowers while you're at it, as well. This lower ball joint from Kryptonite is designed specifically for heavy-duty use and will handle the toughest work that you can throw at them while delivering excellent performance. Featuring a durable black oxide finish to resist corrosion and maintain performance integrity, they even come pre-greased and ready to install with premium Chevron Ultra EP2 Grease. If you're wanting to replace both lower ball joints, make sure to update the quantity to two.