That is interesting. In the picture is a assemblyline C7 lower return line with the armor wrap and a NOS C8 lower return line with armor wrap . The 67 metal line has different bends compared to the 68 version . The c8 is single crimp like assemblyline so not your typical service replacement. So if I am understanding correctly you are implying Ed is saying Ford changed from having the wrap on the 67 return line version and changed to eliminating it in 68 and early 69 production then re instated it in later 69 production? Does that hold true for the lower pressure? If not then why have the lower pressure line with the wrap and the return line next to it not? Are you sure you are not referring to the UPPER pressure line. That upper line did not have wrap on it 67,68,and did not have the armor wrap on it until sometime in 69. Are you sure you are not referring to the upper pressure instead of the lower return line?