Another What Is It?
 

Well, I moved my truck today and this was on the ground. Any idea where it goes? Attachment 518850Attachment 518851

These are plugs that twist into the metal pans under the truck. There are two of these. Just crawl under there and it will be a large square hole that this will twist into.

Look at skid plate that is one of the covers for oil drain holes.

Awesome, thanks

question on the covers... dealer left mine off (somewhere) when they did 1st oil change... will it hurt anything if they are missing? 2014 fx4 5.0