The shiny aluminum tractor/trailer box on the back that opens to make a galley I cut so that it's half as deep now. The other half is the clothes storage box under the futon. The drawer has aluminum trim covering the cut edge, a cabinet handle and felt strips on the bottom for easy sliding. The half on the rear door that makes the galley is attached using aluminum angle, thru-bolted on the rear door. The back of the box is actually the face of the rear door.
Here's the website of the company where I got it:
http://www.800toolbox.com/underbody/underbody.htm

Mine was a "blem." Big discount.
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