Unscrew the two body mount bolts from each side of the truck. These bolts are located under the front part of the doors and under the rear part of the cab. the bolt will have a large rubber washer on it. Place each bolt through the bracket that came with the nerf bars. Place the rubber washer between the bracket and the truck body. Screw the bolts back into place and make sure the brackets are facing outward. Hold the nerf bar to the brackets. Have someone screw in each end of the nerf bar to the brackets.