Quite some time ago the part numbers were given here for running the flex line directly from the hard line to the caliper and not utilizing the hard line from the backing plate to the caliper. I tried the search, but can't get the answer. If you know, please repost. I did get some lines from NAPA that work, but they are too long, though I was able to test the concept and modify the metal tab to hold the 17mm hex (original was round on the 40). It all turned out great but the flex line seems too long and I'm worried it could get caught on something.