dlindsey19
Newbie
More than likely you could have rust behind the top of the windshield that's allowing water to flood in by the windshield seal on the top. If the windshield has ever been replaced they take their razor blades and gouge the metal up. Then the scratch marks get rust and then from there it rusts out the pinch weld and you get a leak. My 94 C1500 and 98 Burban are the same way. Only way to fix it is have a body shop weld in new metal, replace windshield again, blend it and seal it up.