Casey I am pretty sure the window switches do not use the same location on a Chevelle. You probably could on old panels but when you get your new ones I think you will see what I am saying I seem to remember there was a new cutout for the crank and one for the electric switches on my new door panels. I will see if I can find some pics. I did just check my wife's 71 Camaro door panels that I haven't installed yet and it clearly has two locations one round and one kind of rectangular that I assume for the switches. I am installing Nu-Relic power windows in her car which is basically a factory replacement system.