2006 Sierra 2500hd Diesel 2wd Sle2 Crew Cab Bose 1 Texas Owner on 2040-cars

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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.

GMC wants to target Jeep with compact crossover

GMC execs might consider adding a Jeep competitor to the range, but rather than new rumors of a Wrangler-fighter, this time the Professional Grade brand could go after the Renegade. Division boss Duncan Aldred would like to broaden the brand's lineup with a subcompact crossover. "I keep telling everyone, 'How can General Motors' truck brand not be in the fastest-growing segment in the industry, an SUV segment," he said to Automotive News but wouldn't confirm whether the model was under development. General Motors already offers small crossovers like the Chevrolet Trax and Buick Encore, but the CUV segment in general continues to drive auto sales in the US. Adding a similarly sized GMC to the mix might increase the automaker's volume by appealing to different customers. "A GMC buyer is very different from a Buick buyer. This is like comparing the Fiat 500X to the Jeep Renegade. They are very similar but appeal to different people," Dave Sullivan, Product Analysis Manager at AutoPacific, told Autoblog. Aldred started the speculation about a Wrangler-fighting model in an interview in late 2014, and the company reportedly even raised the idea of an offroad-focused vehicle to dealers to see how they reacted. The development process was only in the very early planning stages, but the brand considered using Hummer for a little of the new product's inspiration. Aldred later suggested to journalists the possibility of adding a compact or midsize SUV to the GMC range in the next 10 years to appeal to more buyers. He didn't comment directly on the possibility of the Wrangler-challenger at the time beyond saying: "I can't confirm that ... everything's on the table." Related Video:

GM 6.2L EcoTec V8 rated at 21 mpg by the EPA

General Motors is already laying claim to best-in-class power for its new 6.2-liter V8 that will be offered in the 2014 Chevy Silverado and GMC Sierra this fall, and now it has released fuel economy numbers for the big engine. Available as an option on the Silverado LTZ and High Country (shown above) models as well as the the Sierra SLT and Denali trims, the 6.2L EcoTec3 V8 will return 15 miles per gallon in the city and 21 mpg on the highway on rear-wheel-drive trucks; these numbers drop by one mpg each on four-wheel-drive models.
These estimates are in addition to the engine's 420 horsepower, 460 pound-feet of torque and max trailering capacity of 12,000 pounds, and considering all that power it's not terribly far away from the fuel economy of GM's equally new 4.3-liter V6 and its rating of 18 mpg city and 24 mpg highway. This announcement comes just days after a report indicated that GM is unable to keep up with the demand of the 5.3-liter V8 in the fullsize Chevy and GMC trucks due to supplier issues. GM's official press release for the 6.2-liter V8's fuel economy is posted below.