I'm having a heck of a time getting my car (66 coupe) to stop leaking water into the floor boards when it rains. I've had the windshield resealed twice by two different glass companies in the past month to no avail. I also have the plastic cowl cover on it to keep water out of the cowl. But it is still leaking into the floorboards. I've tried looking up under the dash to find the leaks but I can't see anything cause of the factory air and heater box. I'm gonna eventually put it in the shop and pull as much of the dash, glove compartment and such off as I can then try to find the leak. I just want some ideas before I get in there of what to look for or what all it could be. It usually runs/drips down the sides of the kick panels. Stopping this leak has been my doom.