Originally Posted by muddywater
A rear frame clip of a chevy truck would be a good start, everything would bolt up. Work out the tounge and axle.
You are basically building a trailer to mount your bed on.
True, but going to be a bit difficult to find a rear frame of a 2008+ 2500HD. Plus it would have just regular frame rails with holes in them, etc - trying to make this look cleaner than that.