Spied: 2017 Chevrolet Silverado 3500, GMC Sierra 3500 - PickupTrucks.com

"GM will likely update these HD pickups after the release of the face-lifted 2016 Silverado and Sierra 1500 models. These new versions get revised exterior styling, with features lifted from some passenger-car models such as the LED running lights and revised grilles. "More changes are expected under the hood, however, with the 6. 2-liter gas V-8 from the 1500 models and an updated Duramax turbo-diesel with improved power and fuel efficiency to keep up with what Ford and Ram trucks offer in this segment. The eight-speed automatic is expected to become the main transmission in these trucks as well. "According to our sources, the face-lifted HD trucks are supposed to last until 2020 or so, when the next-generation GM pickups will adopt a more aluminum intensive outer structure to reduce weight, as well as carry newly downsized engines for... "Expect to see the new Silverado 2500/3500 and Sierra 2500/3500 in early to mid-2016. I don't know what that level is, but I've seen no sign of class 8 truck engines getting significantly smaller. If GM goes to the 6. 2 in the gas HD trucks, I hope it will be an iron block version without AFM. Source: news.pickuptrucks.com