Disconnect the negative battery cable. <br>Remove the headlight switch control knob and shaft by reaching up behind the dash and pressing the knob release button located on the bottom of the switch, it's a little metal post. As you press, pull the knob and arm out from the switch past the two on positions to remove it. <br>Unscrew the chrome mounting bezzel on the outside of the dash by turning counter clockwise, there is a slot in it that will alow you to put a screw driver into and bang on if necessary.<br>The whole switch will pull loose from behind and under the dash. Disconnect the big wire plug assembly from the switch, you may have to pry them apart with a screw driver, if so be gental with it.<br>Now just plug in the new switch and follow these instuctions in reverse.<br>My knob arm was to long, so I had to shim it with a nut between the switch and inside of dash. <br>Good Luck !