Well, I had to send the lines back since they didn't fit. I sent the old lines too, measured and took pictures to have (what I thought) make new lines made that would fit.
They pointed to the fact that I "converted" to disc brakes. (71 Monte Carlo discs into a 71 Chevelle). The error was at the brake hose frame brackets. Now, I've seen several disc and drum hose brackets, and the only difference that I can see is the hole for the hose and thickness of the top. NOT, the shape or placement on the frame, right? And I verified the right/left ones were on the correct side.
Any way, I got the new set back today and installed the right front one. It had fit perfect before but was 3/4" short. Now doesn't fit well at all.
Instead of making a new line, they cheated the corners to make up the extra length!! Where it had come over the right frame nice, now hits the frame hard and still barely reaches.
I had to tweak and bend a little to make it reach.
Some times you just can't win. Tomorrow I'll try the front to rear line which was 1 1/2 too short. I hate to see how the did that!