I had a heck of a time with this. The gas tank inlet on my truck has a smaller diameter than the filler neck. I had a filler hose from a fleetside that had a smaller diameter on one side than the other. I combined that hose with one of the L shaped Gates hoses mentioned in the other thread. I had O'Reilly's order all of the part numbers, but only bought the one that fit. I put them together with conduit and hose clamps. It doesn't leak and seems to work okay. I would rather have the right hose, but apparently no one sells it anymore.
I will have to do the other side when I get around to putting in the other tank.
Here is what I ended up with:
