Well, hmm..... It is the largest line that sticks out the furthest. I "Assumed" it was the return line. The return line shouldn't have any real pressure in it. Just back flow rate, which can't be much.
I traced the supply line from the filter, so I know it's not that one.
If it is just the evap crap line, then I will just cut it, use a rubber fuel hose, hose clamps and be done with it.
Thanks for saying that Don ( I feel like a dumbass now), I will look at those lines closer, and do my best to follow them. It's so damn tight right there at the fuel tank, it's hard to see what's what. Doesn't help all the lines vanish behind the tank, and also doesn't help I never dropped this tank, to see first hand whats what behind it, inside the frame rail.
Ya know what... Every time I attempt to do something I have yet to do on this rig, my head always overthinks things. I tend to prepare for the worse, so I am not taken back, when the worse actually happens. lol