LEFT: You can reuse these switches if they are good. Check them by depressing the black plastic slide to see if the contact opens. If the contact does not open, you will need to replace the switch. We had to replace both of ours.

BELOW LEFT: With both switches off, remove the vacuum switch on the left side. Some years, depending on options, will also have a 3-outlet vacuum switch on the right side. Remove them both if your Corvette has them. Once those are off, remove the blower switch in the middle of the control unit. The support bar in front that attaches both sides also needs to be removed. Then remove the four 1/4-inch screws that hold the sides to the face, then discard the old face.