Turn signals not working, blowing fuse

hotrod swinger said

the brake light turns off on that side

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That's a good sign.

Have you replaced the TURN signal blinker mechanism?

There are 2 blinker mechs on for flashers and one for turn signals.

I 67s the turn signal blinker is to the right of the ash tray
Someone recently mentioned in the 70s it is closer to the fuse block. Do t know for sure.

Any chance you put in LED bulbs?