I have a 2004 F250 v10 crew 4x4. Just replaced a fuel pump and wanted to replace the deteriorating fuel line hoses. I bought fuel injection fuel line hoses (3/8") and thought this would be quick. I haven't been able to get the hoses on the connectors. I get just enough to cover the lip but I can't get it far enough to put a clamp on it. Are the hoses 3/8" or is Ford using a metric size? 1/2" seems to be too big. I'm ready to use the old hoses but I know if I do that, it probably won't be long before they start leaking and/or tear. I'd rather do it now with the tank out of the way.

Also I have tried using heat to soften the line and that didn't work. I tried using needlenose pliers to stretch the opening with very little success. Any suggestions or info would be appreciated.

Thanks in advance. BTW, I believe the hoses are on the return lines to the tank.