I was in Laramie, WY. on 4-8-07 and saw a step deck on the fuel island with two 5500 4x4 crew cab/cab chassis flatbeds with ballast weight loads. Transporter was saying they were both max'd out weights, weighing around 18,000# each. They are test vehicles, of course, en-route to west coast. I saw Dodge 5500 badging on sides. The grilles were masked, (looking for Sterling logo's). I was impressed with the beefy rear ends, with square axle housings and 3rd member style pumpkins!
I have been waiting a long time for these, and now after seeing up close, am having a difficult time waiting for delivery of one for myself!