While replacing the cylinders on the rear brakes of my son's Mustang, the brake line's compression nut was firmly stuck to the line itself. The nut and the line are just so happy together, they won't part. Replacement lines are cheap, so I twisted the nut (along with the line) anyway and got the cylinder removed and replaced.
I picked up a replacement 20" 3/16 brake line at Autozone, for all of about $3. Bending it into shape was easier than expected. However, it turns out that the compression fitting upline at the 'splitter' block is larger than the connection at the cylinder.
I don't see the right part on Autozone's website, but I'm not sure I know exactly what I'm looking for, either. Is this an unusual part, or do I need some sort of adapter?
-John O