Working on the brake, fuel and vacuum lines ended up being easier than I thought. I think I heard about the CuNi (copper - nickel) lines from a few posts here on Stovebolt. It seemed like the perfect way to replace the old lines. I had worked with the steel lines before and it was a real pain. Trying to bend it without kinking and getting the bends just right wasn't easy. I have a few different styles of benders and they are all a pain.
I bought a few rolls of each size I needed. I used the old lines as a pattern for the new ones and did several test fits. I was glad I had not assembled much yet because I needed that open space to maneuver the lines around and get them in place. If things were assembled, I'd probably just have to do it in pieces and use unions to connect them. Bending the CuNi lines was pretty easy, even bending by hand worked pretty good without causing kinks. I ran new lines for all the brake lines and fuel lines. I ran new lines for the vacuum shift rear axle along the frame rails, but the really curvy lines going to the cab I used the originals. They were only slightly covered in surface rust, so they were actually in good shape. I ended up using a steel line for the vacuum advance on the distributor since i already had that on hand. It was a real small diameter and I didn't need much of it.
