I am missing the cover that holds the gasket to the firewall around the heater core and evaporator on my 69. I have been trying to track one down and I did actually order one. When I got it the holes for the evaporator were diagonal and would not fit around the evaporator. From what i can tell it looks like 67\68 cars had this kind of cover but 69\70 cars had holes that were vertical for the evaporator to fit through. So I am trying to figure out which is the correct one for my car so I can look around for one to purchase. It has proved to be a hard part for me to come across.. So if anyone has pics or can send me some so I know what to look for that would be great.. Or if anyone has some extra covers they want to get rid of I'd be interested.