What are those plastic things for that are right behind the mud flaps (on trucks that still have them up front)? They are an extention of the inner fender lining, but I can't figure out their purpose. I DO know that they trap an *** load of dirt and leaves and stuff. I was cleaning mud off the underbody of my truck and when I hit these things all this dark colored water came out, so I kept flushing them out. There were rotting leaves, rocks, mud, chunks of asphalt and other things that came out. These things have drain holes in the bottom, but they don't seem to do a very good job. So just what in the hell are these things for?

 

pics

 

 

I take the as a way to know when its time to wash the truck, if they aren't full, go find some more and party on!

 

isn't that where you adjust the t-bars? or "crank" them?

 

No, from the photos I've seen, the T-bars are somewhere forward of them. I got under the truck a while ago, and sasw nothing for them to do, although it was been a while since I've looked.

 

yea.... but isn't that where you turn the screw to crank the t-bars?

 

the t bars are only on edges and 4x4s

 

oh, alright, but that's where you crank them right? or.. turn the screw?

 

If its not an Edge or 4x4 it won't have anything to crank, no screws. But i know what he is referring to and it is right under the front of the foors under the rocker panels, just a black little box thing. The t-bars are farther under the truck, not right next to the edge.

 

It's there to cover up the joins in the bodywork and frame. Mine got cracked in the accident, so I could see what was underneath. I guess Ford couldn't figure out how to pretty it up, so they just stuck a plastic box over it.

 

ya when i took my inner fender well off, i drilled 2 big holes in the bottom of it the plastic because it traps dirt, rocks, and sand in there and your bottom fender will start to rust.