Did all four on my truck! was going to replace with a set of four that came with the truck from the previous owner new looking and sealed in baggie. found that a couple of my original brake lines wouldent seat all the way with the newer looking ones. that looked almost identical to original. anyhow I cleaned the old originals and used the parts out of the newer ones to rebuild the old. Which was cool for me cause the original cases say lockheed/wagner. David.
