Filling the gas tank

The chassis ships from Ford with the filler right by the inlet to the tank. Then the chassis gets stretched. The filler gets moved way away from where it started. I believe the idea is to get it as far away from Fridge, Water Heater, Furnace where there's a chance of sparks. They run piping (probably electric conduit) for Fill and Vent. If those are high (from filler neck) crossed, or way off level, fueling will be difficult. I tried to "neaten" ours up when I replaced the hoses from Filler to Conduit and Conduit to Tank. When I did, it wouldn't fill. Ended up cutting my Zip Ties and letting the tubes sag to where I found them. If your filler is back by the bumper, parking with nose down at the fuel island will help some, if you can arrange that.