As I was attempting to put new brake pads on my 1985 D100, I found that the left bolt was completely unreachable with a socket. There is a brake line running right behind it. I was able to go to with a crescent wrench, but couldn't get enough leverage to break it loose. If I have to take the brake line off, how to keep from getting air in the line?

 

i dont think you have to take the brake line off, there should be two torx holding the cabiler on and then wiggle it off