F350 7.3 diesel dually has a bracket glued on the top of the front bumperbar slightly off-centre and another on the rear of the hood off-centre to the other side.

Guess they are aftermarket brackets, but curious to know for what?

 

I have seen deer whistles that were sold with detachable brackets like what you're showing.

 

That's a GoPro mount.

 

You might be right. Twenty bucks a pair. Almost worth scraping them off and selling on ebay -- or not.

Curiosity satisfied. They can stay

thanks

 

He is definitely right. We use those on all the rally cars.