I have wired the park lamps/turn signal indicators to come on when the light switch is pulled out to the first position and to come on when the headlights come on in the second position, all the way out.
The park lamp/turn signal bulb has two filaments, one to operate the park lamp and a second to operate the signal. It is a very simple task to do so. It requires a three inch jumper wire from the signal lead to the head lamp lead a few inches back from the light switch plug. By doing so, the truck is much more conspicuous during day and night driving.
If the park lamps are on in the first position and the turn signal is utilized, one filament is burning continuous and the second filament flashes. There is no difficulty determining an operator's intention to change lanes or make a turn due to the park lamps and the head lights operating at the same time.
Tail light bulbs have the same characteristic to indicate braking, normal operation or flashing. There is no conflict with the law for the front park lamps and headlights operating simultaneously. The more conspicuous a vehicle is, day or night, the better for the operator and surrounding motorists/pedestrians. Not to mention, the '60-'66 Chevy trucks have a very distict look with the park lamps and headlights operation at the same time.
Additionally, they will perform the same as the millions of other vehicles manufactured with the same function designed and engineered into the vehicle. Ironically, every later model vehicle under power will have every light on the vehicle come on automatically when the key is turned on in the ignition.
