I put a new brake line hose on the rear of my '78 and now my brake lights don't work. I have turn signals and flashers. [ Had brake lights prior to replacing hose and bleeding brakes]. Any idea why?

 

No, you're going to have to fill in the rest of the story. I'm assuming the brake lights worked up until the hose was changed? The brake lights and the hydraulics are completely isolated from one another. So what else happened?

 

I'll take a wild guess and say that after bleeding your brakes, the brake light switch adjustment is out of wack. It's under the dash on the brake pad arm. Otherwise, what FMC400 said................