I added a piece of 1x4 to wedge in next to from leg. At the top it sits inside the U piece that screws to table. At the bottom, it sits on the front leg beam. It is cut to wedge in tight. I use a small bracket screwed to back of the leg beam to keep wood from kicking out. It is very solid now. No wobbling. The wood stays in place very well. It is easy to remove wood and collapse the table. I have since stained wood to match trailer.
