There are four fasteners on bosses that extend out of the pad through the steel upper dash. The clips or nuts (I forget now) are just behind the upper dash and access is blocked by astrovent tubes, heater duct, glove box etc. If the glove box is original, it will probably be a loss going after these fittings. These are just about impossible to reach until the underneath dash stuff is out. The rest of the fasteners are readily visible.