On a 1970, your turn signals are below the bumper. Yes, you can hook up the grill lights to the turn signals, but it is going to take some "wiring" to do it. Not a "plug and play" type of thing.
Mine is a 70 and it had a 74 or 75 grill on it. They plugged right into the loghts. Not sure if the po did anything. The plugs looked original. Gues ill find out since I am putting a 70 grill on it ang got lights for below the bumper.
