66 F85 wagon, turn signal switch has been acting up. Both tail lights flashing at the same time w/o dash lights not flashing. The parts are all plastic. Noticed the new replacements are all plastic or one with a metal base. Anyone know the part number for a 66 wagon non-tilt? Is the metal base replacement a upgraded version? Where is the best place to get the metal base switch? Thank you.

 

Try either one of these companies if they dont have what you need I dont know of any other company that sells classic wiring
American Autowire: Wiring Harnesses and Accessories
Reproduction Electrical Products for American Muscle Cars (wiringharness.com)

 

I looked on Rock Auto and saw three options:

https://www.rockauto.com/en/catalog/...al+switch,4832