I have a 79 Caballero I just bought that has sat for several years. The windshield seals rotted and now I have a lot of water and rust damage under the dash. My key turns but won't engage the ignition module. The rod is sliding now thanks to W-D40 but key Wil not turn the engine over. Engine has been started with jumping the starter, so I know the problem is in the key cylinder and ignition module. I have bought new parts, and started taking the ignition module off of the steering volume but there seems to be a third screw or star faster on the column holding it in that is not shown in the Haynes manual. And I can not get it out. Any sugesstions for its removal. It sits in the middle of the unit on the bracket.