What is the correct replacement brake line fitting for the rear solid lines? I was trying to connect a set of 79 T/A brake lines (the ones with the big U-shape on the end) to a caliper and boogered up the threads on the fitting. I need to cut it off and re-flare with a new fitting, but can't figure out what size/thread it is. It's purple if that helps at all. It appears to be the exact same fitting that attaches to the front brake hoses, the rear brake hose T fitting etc. Thanks!