My second 1965 Dodge Dart.

Well, the verdict is clear. I had hoped that the cowl drain hole was plugged so the water level got above the large vent tubes that sticks up inside the cowl and that way came into the car. But, no. It is rusted through the sheet metal and comes in that way. Well, the drain holes were plugged, but it is holes into the car too and that is where the water comes in.

Has anyone fixed this kind of problem without taking out the windshield, and off with the entire dash, and cowl and everything ?