Lost key then screwed up switch

This mirror control switch will pop right out with just a thin blade type screw driver. Slide the blade of the screw driver under the edge of the switch carefully and twist slowly until you can see the switch coming up. You may need to re position the switch as there is a bit of play in the hole the switch fits into to. Once you have the switch up and out of the panel, carefully release the wires it is clipped to and replace it with one that is good. It is a typical sign these witches have gone bad if your mirror only moves in 2 directions or both mirrors are moving at the same time. I hope I have helped you with your problem.

pull steering wheel then put key in igniton turn it to on position and you should see a hole in the bottom of column shove a pick in it to release cylinder

You can grab the switch with pliers sometimes and break the tumblers of in the cylinder, if you can't get it to break, you can also drill it out. This is what we had to do on an 89 F-150 that the cylinder had worn out and broken on. You should be able to find some how-to's about drilling the cylinder online, maybe even some videos.

the thick lug takes the battery cable (positive) and the solenoid wire (small wire) goes to the ignition electrical switch

take off the black plastic cover around the key switch,about 4 screws,and just under the switch is a tiny hole,turn the key to ACC then push a paper clip in the hole and wiggle the switch and it will come out,if you lost the key then its cheaper and easier to have a lock smith pull the lock out,about $100.00

turn the switch to acc then poke a paper clip in the small hole right under the switch,push it hard and hold,wiggle the switch back and forth while pulling out and it should come out really easy.

If you can insert the key and turn it to the run position. Then look under the steering column where the key is you will see a hole in the plastic cover if you push the pin inside with a paper clip or pick of some sort then you should be able to pull the switch out. 
If you cant get to the pin then pull the lower cover from around the steering column where the switch is located it should have only (3) phillips screws holding it. 
Sorry if you get confused about the plastic cover around the steering wheel, can't remember if the 84's had that. But regardless on the underside of where the ignition switch is where you will find the pin hole.
Good luck and hope this helps.

Look in the bottom cover underneath the lock cylinder and u will see a hole there.Turn ignition switch to on postion then stick a small screw driver or pick into the hole an push the release pin then pull the lock cylinder out.

this is a common ford ignition cylinder problem.you can buy a new key cylinder at a checker or autozone cheap.remove column cover and push small metal button and cylinder comes out

PUT KEY IN IGN CYL.TURN TO RUN POSITION.THERE IS A SMALL HOLE UNDER IGN CYL WITH A SMALL BALL IN THE HOLE PUSH IT UP AND PULL ON KEY TO REMOVE.