I wanted to share this e-mail with everyone just in case you experience the same problem some day. ********************************************* Hi, I had the same problem with my 67 firebird. When I turned on my parking lights and my headlights, the two dash turn signal lights would stay on and my dash instrument lights would not work. I found that the problem was the ground loop on the backside of the dash instrument cluster that goes from the high beam indicator light up to the top middle mounting screw on the dash instrument cluster was not grounded properly. There was paint between the metal ground loop and the metal of the dash. I scraped the paint off the metal dash and made sure the ground loop was touching bare metal and it took care of the problem.
Hope this takes care of your problem, John ******************************************** I went home and using a grounded wire touched the back housing of the instrument cluster. The indicator lights went out and dash lights went on. This e-mail probably saved me days of messing around looking for the problem. "Thanks John"