Just a week ago, we reported a refreshed 2017 Chevrolet Silverado 1500 was spied testing in Michigan, featuring a reworked front and rear end, judging by its camouflage cladding. Around the same time, the 2017 GMC Sierra 1500 was spied wearing the same guise.
Now, PickupTrucks.com has posted photos of 2017 GMC Sierra HD test mules with the revised looks, including fully-loaded dually trucks and chassis cabs. This could likely mean that GM’s entire line of full-size trucks will be getting an update for the 2017 model year.
PUTC believes that while the cosmetic changes will be slight, the powertrain updates will be significantly more extensive, and will likely see a Duramax V8 turbo diesel under the hood. Guesses are currently at 450 horsepower and 850 lb-ft of torque. Who knows what transmission it will have, but we believe the Allison name will stay.
Check out the spy shots here, and bring it back in to let us know what you think.