To further confuse the issue...In 1955-56-57 GMC made a truck like the Chevy Cameo. It had the same wide fiberglass bed as the Cameo. They named it "Suburban".
This is from ClassicTrucks.com. "It just so happens that Lou located this super-rare '57 GMC Suburban Town & Country pickup (which was Pontiac-powered right from the factory). To the best of Lou's research, there were only about 1,000 of these trucks ever built along with the "plentiful" Chevy Cameo."
Here's a link to pictures of a '57 Suburban Pickup
http://www.classictrucks.com/features/0509cl_1957_gmc_suburban/photo_01.html
