Stepside gas filler hose fits
 

Ok here is the deal. Not a direct fit but they work. I picked up a pair from

http://gastankdepot.bmobilized.com/?...ler-necks.html

So I bought I think like an 85 bed. Bought new plastic filler pieces that the necks connect to. I had to drill them to get my 79 necks to fit. The passenger hose was a direct fit. The driver side I had to shorten 2 inches. But it squeezed together. I think they will work. Have not tried to fill them yet. Still trying to install my steps. Ran out of stainless bolts. Back out there tomorrow