As I mentioned in another post, I chose to use some left over M-38 lights as my turn signals indicators. I primarily used these lights because I had them. Also, I didn’t the choice in turn signal indicators I used last time, cheap plastic circular lights from Schucks.
To install them, I ground down the ridges on the lights, drilled holes into the dash, and slid them into it. I also had to ground the lights, so I took the light holders normall used to hold the lights in place and turned them into grounding washers.