I'll give this a proper write up when I've farther along but got this finished tonight before dark.
Cut a hole on the inside of the rocker panel under the van

Use the cutout to reach inside the rocker panel and drill a small hole through to the outside of the van.

From the outside use the small hole as a guide to cut a bigger hole.

Install diesel fuel inlet.

It's a gas van. The diesel will be for a heater.

I started with just the tape measure then before you know it looks like a hardware store.

While the chromed diesel inlet looks pretty cool, the view from under the van shows I still have a ways to go.
