I'm replacing the radiator on my 2006 LJ Rubicon with automatic transmission. The two transmission lines that connect to the radiator are the "quick disconnect" type, and one is NOT disconnecting. I have the little clips out of both lines, and the line with the 90 degree bend in the metal line came off easily. The one with the straight metal line is not budging. I've put the edge of a metal pipe against the connector joining the metal line to the rubber line, and hit the pipe with a hammer. I've hit the nut of the connection with the same pipe arrangement. No manner of knocking this thing around has loosened it up. I've even rotated the connector in the radiator and hit it again, to no avail. Any secrets out there? Any way to leverage it, or pull on it? Maybe apply some heat? (Always looking for an excuse to get a new tool, and I don't have a small hand torch.) Thanks.