I have a piece of wood from my 47 1/2 panel. It was mounted across the top of the cargo area, just behind the front seat. It has an L-bracket at each end that mounts to the truck with two bolts each. the wood looks like a 1x4 that was cut to match the curve of the top of the van. I think it's oak, and it's painted grey same as the interior. It wasn't attached when I got the van, but I kept it anyway.
