Over the weekend I replaced the stock rubicon rocker guards and smittybilt nerf bars with these Rock Hard 4x4 rock sliders w/steps. They are very beefy 3/16 steel plate and tubing, tub mounted with stainless steel 5/16" bolts. The spacers on the bottom are welded on so installation was easy. These things are made in USA, powder coated black for under $350 w/free ups ground. I'm more than happy with them, and I'm loving the extra 3" of clearance I gained by removing those nerf bars.