Pair of tough heavy-duty tubular steel upper control arms engineered to match the strength of your truck. The upper control arms are stronger than the stock arms and are 100% bolt-on. Again, This is for those trucks with Factory Steel Upper Control Arms. They are a direct fit without modification and will work on the trucks that have leveling kits or lift kits. This is a MUST item for your vehicle because they have correct ball-joint angle for lifted applications. This system will not affect your factory OEM ride quality or comfort level.