It's been over a year since I removed the interior of my Z28. Trying to install the rear inner side panel, the arm rests. They have two holes in them that I thought were for screws, but there is no corresponding holes in the sheet metal. Are they supposed to be secured by screws????? The interior sail panels have screw holes and there are corresponding holes. And I know the sail panel fits over the arm rest panel. Could it be that the seat back and bottom are supposed to hold the arm rest panel in place?? And the sail panel helps hold the arm rest in place??