I welded bungs into the arm for bracket at the apex, you can see the brackets in the picture above they are triangular with a hole in the center. You can buy the stud attachment bracket from Guden. It will serve the same purpose as the bracket I made. If you weld the brackets to the arm it won't weaken it. Yes, I put sealed bearings at the end of the arm. I drilled and tapped the truck stud for a 10-32 screw to hold the bearing in place.