I am going to remove the entire rear brake line set. I am not sure that I can separate the lines without a vice and a lot of cussing. So tonight I started removing the lines from the proportioning valve and the master cylinder. The line between the master cylinder and the prop valve does not have to come off, but it is a 6 - 8 inch line.
If I end up replacing the rest of the rear brake lines, this one should not cost very much, right!?!
The biggest problem with the new plan, under the engine I need to get to the clips holding the lines to the frame. And they are buried under some of the worst crud on the truck. Looks like a lot of scraping is on tap for this weekend!