I'd like to take some of the Tonka toy plastic off my T680 and install aluminum steps on it.  If I do that I need to add the back side of the front fender.  When I search Vanderhaggs for the parts for a T680 every part listed is for a Peterbilt 579.  Can someone verify if they are the same?

https://www.vanderhaags.com/detailview.php?part=25646980