You'll have to reach under the dash and grip the side of the switch with your hand. You'll notice a little push-button on the side of the switch. If you press that button in, it will release the switch knob...it will pull out. AFter that, just remove the rest of the switch--which is straight forward.
SgtDel
aka "Andy"
www.delbridge.net
1979 Big 10 383 stroker
1991 Blu 'Burb 3/4 ton 4x4