Has anyone ever tried putting these on their Super Duty? I'm a little curious as to how they would look. I've seen them before on some of the OBS trucks.

Example on this F-650:

 

The F650s use the same doors as our Super Dutys.
They use a block off plate in place of the standard flag or trailer-tow mirrors ours have.
That said, you can certainly put those type mirrors on a F250-F350 if you want, it would look just like the ones in the picture.

 

I personally would think it would look like dumbo, kinda like a Dodge with there girly mirrors flipped to run with the big boys. But to each his own right

I don't think the ones on the OBS were quite that big. I did want to put them on my OBS flatbed I had, I think they would look good on a truck like that.

 

The stock mirrors on the OBS trucks were smaller. I've only seen aftermarket ones. I kind of like the look, not sure why though. Most people I ask say they would look horrible, including my wife.

 

I think your wife has a point