I've had that same problem. You can get a coupler and just connect 2 lines.
Dennis
Not sure which year of truck we are talking about, or how original we desire it to be.
On my AD, the original setup would have been a ~6 inch rubber line at the tank petcock, and then a long run of metal to the fuel pump.
I used the longest pre-flared parts store steel line from the pump rearward, but with a longer homemade rubber line that gives me a convenient place to plug in a clear filter from there to the tank. You'd have to be really looking to know it's even there.