Reposting, since I was Tiger'ed at work, and was not allowed to post pictures from my phone.

Does anyone have a fuel cell with a recessed filler cap? I have a recessed, large mouth filter with the red plastic cap. It works, but when I go to a gas station, I have to shove the nozzle half way inside the cell to prevent splashing. I'd like to reverse engineer a recessed filler neck with a standard throat diameter. Anyone have one they could measure?

Here's what I have on the car now:

Compared to this:


I want to be able to use it like a regular gas neck when applying fuel, including the auto cutoff. That, and I have this, and would like for it to work: