1962 GMC Belly Pan; Is this a factory piece?

[MusicMan70]

Good evening All;

I have a 1962 GMC and I found this piece of sheet metal under the radiator.
I have not seen these on other trucks and thought it might be a fabricated piece, so I was ready to through it away.

I reinstalled it to show how I think it was installed but it might be reversed.

Is it a factory piece to help with cooling?!

That was my guess. So does anyone have this piece under their truck?

Thanks for any input,