Thats easy. Just take the door panel off, take the mirror assembly off, it has 3 bolts all together. and bend the channel part of the mirror that direct the glass in the correct direction to make the triangle be closer to the door gasket. It takes patience to get it right but that will fix your issue.This is exactly right; the angle of my driver’s window was off and mobile service corrected. However, there can also be an issue with the small triangular glass where it meets door seal. Above 70 mph I have wind noise and determined the bottom front edge of glass does not seal against door gasket. If I push the rubber on inside into that corner it changes the noise. So I’m trying to figure out how to adjust. I know some have replaces the triangular window.