It Fits! (Generator Under Truck Box Cover)
Last year when I had the Honda EU3000Handi in the back of my truck (2004 Chev fullsize) that had a tri-fold cover on it, the cover wouldn't close even though it mounted on top of the box side..
The GMT900s have a 2" taller box side. I was worried though that w/ the flush mounted Bakflip tri-fold, I would lose the 2" I had gained.
Well I put the generator in the box today & closed the cover. Lots of room between the gen' & cover. So I can lock the tailgate and everything is secure.