How do you replace a window switch for a 1978 corvette?

The best way to do it is to remove the whole center bezel (where the radio sits in) be very careful not to crack it. there are screws holding it in, you'll see them. If you have a radio installed, do what you have to do to get the bezel out. The vents on the top of the bezel are attached to it, so be carefull and work it out "SLOWLY". then remove the carpet panels, which are running from front to back on the side of the seats. there are 3 screws holding each one in. then remove the console bezel where the two window switches set into. you'll see the hex head nuts, two on each side (i believe) of the console bezel and two underneath where the radio bezel sat on. this should be enough to raise the console up and look underneeth the switches and you'll find them held in by two more hex head screws. reverse the installation. good luck!