Thanks to our friendly neighborhood spy photographers, we’ve now got images of the 2017 Ford F-Series Super Duty, but unlike before , Ford is showing off four body styles, including a crew cab dualie, a cab-and-chassis (fit with a flatbed), an extended cab, and a single cab.

The crew cab dualie spotted is wearing 19.5-inch wheels, making us pretty sure we’re looking at an F-450 Super Duty. The cab looks very similar to the truck we saw last month, which isn’t surprising. We are fairly sure the F-150 is donating its cab to the Super Duty, which means a huge amount of rear-seat space, but we expect the bigger truck to get its own interior styling to help it maintain its uniqueness relative to its 1/2-ton brother.

The dualie’s bedsides feature prominent flares to cover the dual rear wheels, but unlike the current Super Duty’s, these wheel arches are massive. The rear fenders are blockier than those of the graceful Ram 3500HD dualie, but they give the truck a muscular look, hearkening back to Ford’s trucks of the 1970s and 1980s. As with all F-450s, this one is equipped with a Power Stroke diesel engine, as evidenced by the Venturi-tip exhaust. A solid-axle front and rear suspension design carries over, which will help the F-450 maintain its high payload and towing capacities.

Also seen testing were a regular cab, an extended cab, a single-rear-wheel crew cab, and a dual-rear-wheel crew cab fit with a flatbed. Each variant features clean bodysides and the blocky front end that will compose the Super Duty’s new look. Up front, a very prominent Ford oval is inset between two grille bars. As we reported before, LED lighting will make an appearance in the taillights and parking lamps, with LED headlights being a possibility.

As with the 2015 F-150, the new Super Duty will wear aluminum sheetmetal in order to save weight. Given the larger body of the Super Duty, we predict weight savings of up to 900 pounds when comparing equivalent styles. Ford will also rework the interior for the larger F-Series, making it competitive with its crosstown rivals from General Motors and Ram Truck.

While a full reveal is still months away (likely at the 2016 North American International Auto Show or Chicago Auto Show), we’ll be able to tell you more about the 2017 Super Duty as more of these trucks hit the road for preproduction testing. Until then, peruse the gallery of images and tell us what you think is coming for the new F-250, F-350, and F-450.

Source: SpiedBilde Photography