Pull the horn pad, then unscrew the ground cable and take off the steering wheel and the column trim shroud. With an automatic transmission select the Park position for the selector lever and with a manual transmission select the reverse gear for the selector lever and set the ignition switch to RUN. Chuck a wire pin or a small drift punch ¼ inch (3 mm) diameter through the casting hole down to the middle of the Ignition Lock Cylinder housing. To take out the lock cylinder, one is required to press the wire pin while at the same time pulling it up. For installation the lock cylinder should be placed at the RUN position and the retaining pin should be pressed down before being placed as the cylinder into its housing with the interlocking washer. Twist the key until it reaches the off position so as to be able to advance the cylinder retaining pin to the hole at the cylinder housing. Activate the switch to ensure proper functioning by rotating the key through all positions and then the steering wheel, pad and column shroud were fitted and the battery ground connected.