have a duramax with a utility box on it. its slow to fill the tank since the box swap. Anyways, finally had enough with it and tore it appart today. found the inner fuel neck hose, (small hose inside a larger one) was missing from inside the bigger one. anyways, does anybody know where or have any ideas how to rig one of these inner hoses up? I know diesel after a few years will eat non-diesel rated products. any ideas?