Originally Posted by LATECH
Front markers are working correctly now. They werent designed to be on when the headlights were on, but only when the headlight switch was turned to park lamps.
On the headlight switch, you can move a wire to achieve this . I will eclose a photo.
My 64 does the same thing...I am going to change it also.
Try jumpering these two connectors where the little spade is across the two terminals first to be sure it works.
I think that will force the headlights on when in the parking light position. My schematic is not 100% clear but that is what it looks like