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Ahead of its official debut at the Detroit Auto Show, GMC has revealed its new Sierra All Terrain HD Concept, giving a look at a possible off-road version of the big truck, while also previewing certain styling elements that will trickle down to the production model in the near future.
Combining the standard Crew Cab with the 5′ 8″ box currently not offered on HD models the All Terrain concept then gets a special front end with a massive front grille, custom matte-chrome accenting and LED lighting. A two-inch lift is also part of the package, with Fox Shox and custom control arms. To help the truck’s off-road capability, it has sculpted front end to deliver a maximum approach angle and the side steps that are retractable as well. In addition, the entire undercarriage is coated in a special hard composite for maximum durability.
Custom 20-inch 8-lug wheels give a real rig look to the diesel monster, as do flared fenders that house a two-inch wider track. Those 20s also help give excellent AWD capability when matched with a set of 35-inch-tall BFGoodrich KM2 “mud terrain” tires.
Under the hood continues to be GMC’s new 6.6-liter Duramax diesel V8 making 397-hp and 765 ft-lbs of torque.
GMC has just given us a sneak peak at the truck in person at a preview of its Detroit Auto Show products. Execs wouldn’t comment on the production likelihood of the truck or if design elements will make it to market, although both the Chevy Silverado HD and GMC Sierra HD are due for a mid-cycle refresh quite soon and are expected to receive major design changes to help compete with the more aggressive looks from Ford and Dodge.
Be sure to check back for more news and info with live coverage from the Detroit Auto Show starting January 10th.
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