The steel dash is spot welded to the windshield frame. The bolts on the side just stiffen it up and hold it secure to the sides. It's quite a job to remove it and reinstall it. I wouldn't do it just to paint it. 20X less work to mask it off if it just needs paint. If it is damaged I would still not remove it, I would cut out the damaged section and replace it with a section from another truck.