4×4 Trucks and Trailers

4×4, Offroad, Trucks and Trailers News, Guides and Reviews

GMC Sierra HD Concept

What you are looking at is possibly the next GMC Sierra heavy duty truck. Well, not exactly in the same shape, but it’ll be close.

Actually under that awesome body, it has a production-based 4WD chassis and the Duramax diesel/Allison 1000 six-speed powertrain but gets a unique suspension system, it even gets the 6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission powertrain combination offered in the 2011 Sierra HD trucks 397 horsepower (296 kW) and 765 lb.-ft. of torque (1,037 Nm).

GMC Sierra HD Concept GMC Sierra All Terrain HD Concept 1

Other facts you have to know about this pickup truck are: payload capacity of 2,700 pounds (1,225 kg), conventional towing capacity of 13,000 pounds (5,896 kg) and Estimated fifth-wheel towing capacity of 15,600 pounds (7,076 kg).


  • Body style / driveline: 5-passenger crew cab, 3/4-ton 4-wheel-drive heavy-duty pickup
  • Construction: body on frame
  • Engine: Duramax 6.6L turbo-diesel
  • Horsepower: 397 hp (296 kW) @ 3000 rpm
  • Torque: 765 Nm (1037 lb.-ft) @ 1600 rpm
  • Transmission: Allison 1000 six-speed automatic
  • Suspension
    • front: long- and short-arm independent with torsion bars
    • rear: semi-elliptic two-stage multi-leaf spring
  • Steering type: integral power-assisted recirculating ball
  • Brakes (type): power-assisted, Hydroboost brake-apply system, four-wheel disc, four-wheel ABS
  • Brake rotor (diameter x thickness)
    • front: 13.97″ x 1.57″ / 355 x 40 mm
    • rear: 14.17″ x 1.34″ / 360 x 34 mm
  • Wheel size and type: 20 x 9.5-inch aluminum
  • Tire type and size: BFGoodrich KM2 325/60R20
  • Wheelbase: 148.6″ / 3774 mm
  • Overall length: 230.9″ / 5864 mm
  • Overall width: 83″ / 2106 mm
  • Overall height: 81.8″ / 2077 mm
  • Track
    • front: 73″ / 1853 mm
    • rear: 73″ / 1853 mm
  • Minimum ground clearance
    • 21.1″ / 536 mm (at rocker panels)
    • 11.8″ / 300 mm (at skid plates)
  • Approach angle
    • front: 39°
    • rear: 31°
  • Maximum payload (est.): 2700 lbs. / 1225 kg
  • Maximum towing capacity (est.)
    • ball hitch: 13,000 lbs. / 5896 kg
    • fifth-wheel hitch(est.): 15,600lbs. / 7076 kg

2011 GMC Sierra Heavy Duty Pricing

Official pricing for the all-new GMC Sierra Heavy Duty pickup truck has been confirmed by General Motors.

The 2011 model starts from $27,965 for the 2500 regular cab 2WD model. The Sierra Denali HD, the first offering of the exclusive Denali line on a heavy-duty GMC pickup, will start at $45,865. Both have a $995 destination charge.

2011 GMC Sierra Heavy Duty Pricing gmc sierra 2011

The 2011 Sierra HD lineup has expanded to include eleven 2500HD models and eight single- and dual-rear-wheel 3500HD models offered in WT, SLE and SLT trim levels. A new and larger 36-gallon (136 L) fuel tank is standard on all models. Combined with highway fuel economy improvements up to 11 percent over the previous model, GM testing indicates that the Sierra HD’s equipped with the Duramax diesel can have a highway range up to 680 miles, and new B20 biodiesel capability.

The truck also offers the best warranty coverage in America with a five-year/100,000-mile limited powertrain warranty.

2011 GMC Sierra Denali Heavy Duty

GMC has unveiled their new competitor for the battle of the giants! We’re talking about the 2011 GMC Sierra Denali Heavy duty which is set to head to head with Chevy Silverado and more importantly the new Ford F-150 Raptor.

So like them, the Sierra features a fabulously bold design, new chassis and suspension, 4WD system and it also get a powerful engine.

2011 GMC Sierra Denali Heavy Duty 2011 GMC Sierra Denali Heavy Duty 1

The Sierra’s 6.6-liter Duamax engine delivers 397 hp and 765 ft-lbs of torque, and comes with a 6-speed Allison transmission. This engine gives the Sierra 20,000 lb towing capability while the payload of the truck is 6,335 lb.

The new Allison transmission has also been strengthened to cope with the upgraded engine and it also features optional exhaust brake, Power Take Off and Driver Shift Control (DSC) systems. The whole powertrain is also optimized for better efficiency. The truck also features many modern safety and convenience systems such as the StabiliTrak and Trailer Sway Control, as well as Hill Start Assist.

2011 GMC Sierra Denali Heavy Duty 2011 GMC Sierra Denali Heavy Duty 2

“The new Sierra Denali HD is the latest expression of GMC’s Denali philosophy of blending capability with premium features and styling,” said Lisa Hutchinson, GMC product marketing director. “It is a premium tool that offers many comfort and infotainment features, along with a maximum towing capacity of 15,600 pounds with the segment’s most powerful diesel – that’s enough to tow a 34-foot-long, three-axle travel trailer.”

2011 GMC Arcadia Denali

The new GMC Arcadia will be available with Denali package offering more luxury, exclusivity and value when it goes on sale in late 2010.

The Denali models are distinguished by exclusive exterior features such as new chrome grille, revised bumpers, side moldings in body color, chrome tailpipes and new and shiny 20-inch wheels. There’s also a choice of five different colors for the body including Quicksilver Metallic, Summit White, Carbon Black, Red Jewel Tintcoat and White Diamond Tricoat.

2011 GMC Arcadia Denali GMC Arcadia Denali

For the interior, Arcadia Denali comes with premium leather upholstery, wooden trims for the dashboard and door panels, and a steering wheel covered in both leather and wood! You also get Dual SkyScape sunroof and a Head Up Display system.

The Arcadia is powered by a 3.6 liter 288 hp V6 engine.

2010 GMC Terrain

Amongst all of the SUVs that General Motors produces, the ones by GMC has always been the most posh and luxurious. Don’t get me wrong, they still feel very cheap in comparison with the European products, but at least between GM cars, they are a bit classier!

Anyway, recently GM announced details and pricing on the updated Terrian model for 2010. According to GM, the car is updated in ten different fields to be able to deliver high standard to its customers. Those ten fields include: Design, Fuel economy, MultiFlex sliding rear seat, Interior, Smart, integrated features, Direct injection and six gears, Ride and handling, safety,quality,powertrain warranty and value.

2010 GMC Terrain 2010 GMC Terrain 1

The car can be had with a 2.4-liter direct injected Ecotec engine with 183 hp and 233 nm or torque or a 3.0 liter V6 engine developing 264 hp and 301 nm. The MPG rating for the 2.4 liter engine is 22 in city and 32 in highways for FWD models and Eco mode, which must be activated via a switch in the center console. The V6 model has 25 MPG for highway driving.

For the interior the car is benefited from better quality of used materials. It also has some clever equipments such as the MultiFlex sliding rear seat which greatly increases the flexibility of the interior, allowing it to be optimized for five adult passengers or cargo, or even both. With it, the seat can be moved fore or aft nearly eight inches (200 mm). When moved rearward, it allows more legroom for rear-seat passengers than any other vehicle in its class; and when moved forward, it expands the rear cargo space. Fold down the seat and create nearly 64 cubic feet (1809 liters) of total cargo space.

2010 GMC Terrain 2010 GMC Terrain 2

Some of the other cool features that you get with the new Terrian include:

Standard rear-vision camera that provides a view of objects or people directly behind the vehicle
Standard USB audio connectivity and MP3 playback for your portable music player – plug it in and control the features right from the radio or the optional steering wheel controls
Standard OnStar provides the comfort of a live advisor to provide turn-by-turn directions or assist when things go wrong
Standard XM Satellite Radio providescoast-to-coast tunes when things are oh-so-right
Programmable power liftgate can be set to open to a lower height, clearing garage obstructions or making it easier to reach for those of shorter stature
Bluetooth hands-free phone capability , so the driver can remain focused on the road
Remote vehicle start that can be used to automatically heat up a cold 2010 GMC Terrain on a January morning , or cool it down on a hot August afternoon
Seven-inch touch screen navigation system and a 10-gigabyte hard drive. The nav system has touch screen control and the screen itself is large enough to safely view at a glance, while the 10-gig hard drive enables a radio station-like song library to be stored for instant playback through the radio
DVD-based rear-seat entertainment system with two independent screens and inputs, allowing one viewer to watch a movie and the other to play video games. The controls can be overridden from the front seat – just in case separate entertainment choices still aren’t enough to elicit rear-seat sibling harmony

2010 GMC Terrain 2010 GMC Terrain 3

Pricing for the 2010 GMC Terrian starts at $24,995 for SLE1 FWD model. A loaded SLT2 model with AWD system and features like 18-inch wheels, heated leather seats, rear park assist, a sunroof and the power liftgate stats at $29,995.