How do you adjust the transmission linkage in a 1976 Buick Skylark?

You take out the shifter cable and pop open the plastic clip above the spring and pull it back to make the adjustment then push back down the clip. Then reinstall on the car. Make sure the is no extra gas in the carborator as it could *and did* start a small car fire. All joking aside this was a learning experience. We will now replace the cable into the vehicle and see if it works. (yes this is a girl fixing a car