2017 Chevy Silverado HD and GMC Sierra HD Prototypes [Spied] - The Fast Lane
These should be designated as the 2017 Chevy Silverado HD and 2017 GMC Sierra HD, although there is no official word on this yet. We first saw similar prototypes testing in July of 2014. These test mules now have black tape on the grilles, but the hood covers with a peculiar center cutout are still there. Judging by the big DEF tanks under the passenger side, these trucks are testing the latest version of the Duramax turbo-diesels. These prototypes are towing all kinds of trailers: flat-bed, utility box, and gooseneck trailers. What everyone thinks is the DEF tank hanging below the frame is actually a protective shell. The tank is inside and there is a gap between the tank and shell. I have yet to see a punctured or damaged tank come through our dealership and we have customers from pipeline welders to riggers to hardcore ranchers. Source: www.tfltruck.com
