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2015 Sierra All Terrain HD looks ready to hit heavy-duty trails

GMC is getting its heavy-duty trucks ready for the mud this summer with its All Terrain package for the Sierra 2500HD and 3500HD. Meant to blend style, tech and ruggedness, the pack includes a lot of extra chrome outside and an off-road package underneath.
The 2015 Sierra All Terrain HD trucks naturally come standard with four-wheel drive with an electronically controlled transfer case to handle things in the dirt. The Z71 off-road package is also standard, which includes Rancho twin-tube shocks, hill descent control and a skid plate. To add some style when off the beaten path, the pack includes chrome trim on the mirror caps, lower bumper and grille surround, plus LEDs around the headlights and 18-inch wheels (20-inchers are optional on the 2500HD). The 3500HD also gets chrome, adjustable outside camper mirrors. The interior receives a technology upgrade thanks to the standard rearview camera and IntelliLink infotainment that can act as a Wi-Fi hotspot through OnStar 4G LTE, read text messages and includes Siri Eyes Free for iPhone users.
The All Terrain package goes on sale on both trucks this summer and is offered on either the SLE or SLT trim levels in double cab and crew cab models. The standard engine is the 6.0-liter V8 with 360 horsepower and 380 pound-feet of torque, but the Duramax 6.6-liter, diesel V8 with 397 hp and 765 lb-ft is also available. The gas engine is mated to a Hydra-matic six-speed automatic, and the diesel uses an Allison six-speed automatic. Scroll down to read the full announcement about these heavy-duty off-roaders.

Next-gen GM SUVs caught wearing new boxy bodies [w/video]

We recently drove the brand-new 2014 Chevrolet Silverado and found it to be vastly improved compared to the outgoing model. And now that The General's pickup trucks have been squared away, it's time to focus our attention onto their passenger-friendly companions, the Chevrolet Tahoe and GMC Yukon (above).
Our spy photographers have passed along a huge smattering of photos (and a video), showing the new SUVs out testing. Both the short- and long-wheelbase models were spied, and while the overall shape of the vehicles hasn't changed all that much, we expect the updates to be substantial. In addition to new powertrain options, like GM's new small-block V8, we expect the interiors of both SUVs to get massive makeovers, providing better materials throughout their cabins and quieter, more refined environments. We even hear that some trick new suspension developments may be in store for upper-end models.
Visually, these spy shots allow us to see a couple of new details on the SUVs' front and rear fascias, including LED running lamps on the Yukon and some interesting LED taillamp treatments. Of course, the obvious third party missing from this set of photos is the Cadillac Escalade, but as we reported earlier, GM is working to further differentiate the 'Slade from the rest of the fullsize SUV lineup, and is working to make the new model "much less ostentatious."

2024 GMC Canyon AT4X AEV teased on 35-inch tires

Last month, Chevrolet Performance teased the 2024 Colorado ZR2 Bison, which will be the ultimate hardcore off-road variant for that model developed in collaboration with American Expeditionary Vehicles (AEV). Since that camouflaged preview appeared, we've welcomed debuts of the competition, the 2024 Ford Ranger Raptor and 2024 Toyota Tacoma TRD Pro. Bookending a solid month of 4x4 delights, GMC teased the coming 2024 Canyon AT4X AEV. We can look at this as the GMC version of the Colorado ZR2 Bison, the Canyon's new-for-2024 AT4X trim given an additional boost in spec and capability. This isn't the truck's first flirt with the public. During media drives for the 2024 Sierra HD AT4X, one of the new heavy duty rigs showed up to the site pulling a trailer bearing a covered pickup. The mid-size form factor, 35-inch tires, and appearance at a GMC event were clues enough to the pickup's identity.  The official preview is proof of what we've been expecting. The revised front fascia wears a high-clearance bumper. Don't expect that winch to be included; the red hook in the tease is a digital add-on. You can expect the winch opening, boron steel underbody skid plating, and Multimatic dampers. The standard AT4X got a three-inch lift over the non-hardcore Canyon variants, in part thanks to being fitted with 33-inch tires. The 35-inch Goodyear Wrangler Territory MT 315/70 17 tires on the AT4X AEV are thought to help provide 11 inches of ground clearance. Beefier wishbones and hydraulic bump stops help protect owners who want to test limits. Reports by folks who walked around the covered truck predict a set of beadlock-capable AEV Salta wheels like the kind sold with the full-size Sierra AT4X AEV Edition. The cover couldn't hide the sport rack in the bed nor the bed-mounted spare tire carrier. Those, like the winch, are likely options that add to the price. Don't be surprised if engine output is unchanged. The 2.7-liter H.O. turbocharged four-cylinder makes 310 horsepower and 430-pound feet of torque. We'll never complain about more, but that's plenty for a truck envisioned as a low-speed obstacle crosser.  All GMC is saying for now is, "An even more off-road capable Canyon is coming." It debuts on July 6. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.