Hi All. I need help with my 1966 Mustang brake lights. I have running lights and turn signals, but my brake lights just don't work anymore. We replaced the switch and it didn't help. What else couple it be?

Any ideas?

 

bulbs there are 2 elements you know

 

Wiring going to rear.

 

The brake lights are also the turn signal bulb elements. if you have turn signals but no brake lights, and you've confirmed the brake switch is functional, the Turn signal switch is bad.

 

i had this problem and check the ground wire coming from the tail light to the body,...mine was so brittle and broken, i regrounded them both and it worked! also make sure you have the correct bulbs