I just picked up a 1980 and just noticed an odd problem. The brake lights quit when the headlights are turned on but wirk when the headlights are off. The parking lights are also inop, but the turn signals work as they should. Any ideas??? Thanks in advance.

 

Problem solved...Bad grounds on both sockets. A little 220 grit and It is good to go. Can a moderator delete this post? Thanks again.