Jon, you misunderstand. I use universal lines and splice nuts all the time. I was referring to the ones that are supposedly bent to fit a specific truck frame. Quite often, I've seen those custom line kits that only vaguely resemble what was there originally, and they needed
a lot of manipulating to make them work. It's been quite a while since I've done a complete re-plumb job, so the quality has probably improved.
Jerry