Need some GP38 help

[Rscott417]

I have 2 Atlas Gp38-2s that im having an issue with. I dont know what it's called or what it's purpose is so my first question is what is the box on the conductors side right behind the cab? My problem is that it seems Atlas didn't get the dimensions of that box correct which is making my NY&A paint scheme all out of whack. The top white stripe (blue stripe in the photo) needs to be right under the window sill but then also be right at the top edge of that box and continue to the back of the engine. I was thinking of using small strips of styrene to add to the height (not sure how great that'll look) but wanted to see if anyone here has had the same issue and knows a way fix the height problem.

basically the box needs to be a hair taller than the blue tape




This is the paint scheme <!-- m --><a class="postlink" href="http://www.railpictures.net/viewphoto.php?id=327928&nseq=78">http://www.railpictures.net/viewphoto.p ... 28&nseq=78</a><!-- m -->