Okay, so I'm currently learning how to fix a fuel filler hose leak on my 1989 Ranger. It was bad enough to find out that I'm looking at maybe $60 for a filler hose. But then I've learned that that's only the OUTER hose. For a whole inner and outer hose assembly I'm looking at maybe a couple hundred backs. (Then on top of that, I'm probably also looking at a $60 new bolt and clip set because I've already had a couple of mishaps trying to loosen up the bed bolts.)

So my question is: when would a person ever have occasion to replace only that outer hose? Why do they sell a replacement for the outer hose by itself?

I'm assuming if I see a leak then I need both the inner and outer hose assembly, I understand the outer hose is to let air out of the tank. I don't suppose there's some way I could need only the outer hose (?).

 

The outer one is the one that will actually leak if it cracks or splits. People usually end up replacing the inner one if it gets too bad causing problems while trying to fuel up, or when the metal part is rusted up and leaking. The last 2 I've replaced on separate Rangers just needed the outer hose. You have to take it apart first to determine that though. If you can't park the truck until you get parts, may just as well do it all.
ETA: I was dropping the tanks anyway to replace the tank straps so the filler hose was a secondary thing while I was there. Didn't bother taking bed off.

 

Very helpful info. Thanks, Grumpa.

Yeah, in my case I pretty much need to fix the truck in one work session. So I think I will just buy the whole filler neck assembly.

It's not that bad a leak. I can see the crack and was able to stop it by gumming it up with some silicone. But I know that's only a temporary fix at best, so I definitely will replace the filler neck very soon.