Background
The gap between the rear tray and fiberglass roll pan cover is filled by the aluminum roll pan brace.
The brace mounts from the inside of the tray side and then attaches to the top of the fiberglass roll pan cover. Rivets can be used, but a better installation method is 1/4-20 rivnuts (with 1/4-20 button head bolts) since this allows fine adjusts for rear body alignment.
