Hello, these a little more difficult than most and will require some special tools to do. You will need a steering wheel puller, a lock plate depressor and a lock tool for the telescoping steering if it is equipped with a telescope type of wheel. You will need to remove the steering wheel, the lock plate and the turn signal switch to access the warning switch that makes the key buzzer work, then you can get to the screw that retains the lock cylinder in the column. I am sending you some information on both the standard column and on the telescope type. If you have questions, just ask. You should be able to rent the needed special tools from most parts stores. You may want to print this stuff out. Thanks
1968-76 Telescoping WheelSee Figures 5 through 15
Fig. 5: Tilt and telescoping steering wheel mounting-1968-76 vehicles Fig. 6: Use a suitable tool to pry the horn cap off the steering wheel Fig. 7: Unfasten the three retaining screws ... Fig. 8: ... then remove the upper horn contact Fig. 9: Unfasten the retaining screws ... Fig. 10: ... then remove the center star screw Fig. 11: Remove the steering column lock lever and the spacer (if used) Fig. 12: Use a suitable pair of pliers to remove the snapring Fig. 13: Hold the steering wheel still while loosening the nut Fig. 14: Remove the retaining nut ... Fig. 15: ... then use a suitable puller to remove the steering wheel from the column
To remove the wheel for turn signal switch service, follow Steps 3-6 "Standard Wheel" procedure. Tighten the nut to 30 ft. lbs. On 1975-76 models, it is necessary to remove the snapring from the steering shaft first. Dont forget to install the snapring after tightening the nut.
1977-79 Standard Wheel
1977-82 Tilt Telescoping WheelSee Figure 16
Fig. 16: Exploded view of the tilt and telescoping steering wheel-1977-81 vehicles
YOU DO NOT NEED THE TURN SIGNAL SWITCH ALL THE WAY OUT OF THE COLUMN, JUST LET IT HANG BY THE WIRES.
Tilt/Telescope 1969-82 Vehicles
1969 Corvette assembly order is: horn control carrier, lockplate, and upper bearing preload spring.
1969-78 VehiclesFig. 1 Removing the lock cylinder by depressing the spring latch Fig. 2 Removing the lock cylinder by unscrewing the lock retaining screw
Considerable force may be necessary to break this casting flash, but be careful not to damage any other parts. When ordering a new lock cylinder, specify a cylinder assembly. This will save assembling the cylinder washer, sleeve, and adaptor.
the illustrations that you sent are not legible. what publication did they come from??
They are from an Auto Zone book that I have and one is from a GM manual. I will try to enlarge them and see if it helps. These are from a couple years newer, but should have what you need, if I can get them to post. Thanks
Your switch, may not have a screw in it, it may have the push in detent like in the other picture.
Looks like that is about all that I have, have you tried enlargeing them on a printer?