Headlamp switch removal tool. The GM special tool you didn't know you needed.

grabcad

This is a 1/4" drive socket for removing the headlamp switch retainer for late 70s to early 90s GM vehicles. Sure you could use a big fat screw driver and mar the finish of your original headlamp switch retainer and it would be partially obscured by the knob anyway but now you don't have to. You can print out this tool and remove the most stuck of headlamp retainers. Besides, if you jacked that part you would never forgive your self. Family, friends, fans and prospective buyers will never notice it while admiring your vintage American steel sled but you will. Just imagine the sinking feeling every time you reach for the lights. The regret you would feel after you finish up that night time cruise and pop the knob. Take the time, your ride is worth it.