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I have original style rear taillights. Can signal lights be incorporated into these? What internal changes need to be made?

Check with The Filling Station as I believe they have the LED conversion kits that include signal lights. I have them on my 32 . The inside sockets needed to be removed .

What year car are you planning to convert?

Does it already have a dual filament rear bulb? Or are there 2 single filament bulbs?

You should be able to add a 7 wire turn signal controller that connects to the existing brake light wire.

It is a 32. 2 single filament bulbs.

The original tail lights are OK for show but in my opinion they are not adequate for todays traffic.

I assume that you have both left and right tailights. It not, that is your first step.

Here are tricks some of us have used to make taillights bright enough to provide the visibility to drive the car safely.

- Paint the inside of the housing gloss white. It reflects much better than any dull plating. In fact, it is almost as good as having the inside silver plated (which tarnishes).
- If there are plastic lenses available use them instead of the glass. While the old glass lenses are original on many of these cars they do not pass as much light.
- Use the higher candlepower single filament bulb. Sorry that I do not remember the part number. Hopefully someone will fill that gap.

What front lights do you have that could be converted to turn signals? I do not know what lights were standard on a ‘32. If you have a front parking light then you will need to convert that to a dual filament socket and bulb.

Then your major work is wiring a 7 wire controller and mounting it on the steering column. You will want to connect what is now the rear brake light bulb and the second filament in he front bulb to the controller.

I have right and left tailights with plastic lenses and single filament tail light and brake light bulbs. I have cowl lights into which I have replaced the single contact bulbs and sockets with dual contacts. Do I need to have a dual filament bulb to achieve rear signal lights?

You should not have to convert to a dual filament bulb to add a rear turn signal function. The wiring for the 7 wire controller will connect to the bulbs that currently serves as the brake light.

I agree that the converted cowl lights could serve as the front turn signals. I would spend some time evaluating if they as visible as needed to serve as a turn signal. Most people expect the front turn signal to be located lower and more at the front of the vehicle than the cowl lights.