Thre poewr wagon comes standard with 4.56's but i was wondering if you could order it with 3.73's.

 

I'm going to say no and stick with it until someone proves me wrong. I did a lot of reading about the Power Wagon when it came out, and that is one of the bullet points in making it more "offroadable".

I'm sure you are aware of this, but there is no Cummins option in the Power Wagon as well. Hemi only.