Hi. I am in the process of working on my brakes and replacing the wheel cylinders, and have run into some issues with leaking brake fittings. I had a leak from the right rear fitting which had been buggered up by a previous owner. I removed the steel line to check the flares and discovered that at the block end it is a double flare but at the cylinder end it is a single flare. My first question is shouldn't both ends be flared the same way? I read that the AN flare is a single flare but I'm not sure these are AN lines. Can anybody shed more light on this?