GMC Sierra All Terrain HD Concept (2011) [Reviews]

GMC Sierra HD Off-Road Concept is an exploration of the ability of heavy trucks combined with greater off-road versatility. It is highlighted by a bold exterior styling, enhanced off-road suspension and pricing details are expected from GMC - all designed to give better access to off-road destinations.

New 2011 Sierra All Terrain HD supports HD Concept, a modified version, the production-based chassis and 4WD Duramax Diesel / Allison 1000 six-speed transmission. Improved suspension and a single body size, including increased ground clearance and a wider track, as well as the higher the method / departure angle, provide off-road capability while maintaining performance and payload capacity HD Trailer .

"The Sierra All Terrain Concept GMC HD is an excellent platform HD to the next level, he married for the legendary Duramax Diesel / Allison Transmission, and provides a first term heavy GMC All Terrain," said Lisa Hutchinson, director GMC product marketing. "It provides the unique ability of the Sierra HD - transport, towing and performance -. And apply them to the harshest environments of conduct, it is the ultimate professional tool for construction crews, producers and explorers, whose activities are not limited by where the road ends. "
The GMC Sierra HD SUV has a unique configuration of five feet, eight inches double cab / short box that supports a wheel in the corners proportion. Short overall length of the Sierra HD production models, the dimensions of the concept of contributing to a greater approach / departure angle. Other off-road elements are:

Wider, 73 inches (1853 mm) track for greater stability

About 3 inches (76 mm) higher above the ground

Front custom of upper and lower control arms

Fox Designed off road shock with remote reservoir fluid (integrated in the wheelhouse trim)

Bumpers front and rear bumpers

Electric front stabilizer

35 inches tall BFGoodrich KM2 "mud terrain" tires mounted on 20-inch wheels machined aluminum

Complete Skid composed. "The attributes of capabilities to improve the GMC Sierra HD Terrain rely on the capacities already available in the trucks notable of all new Sierra HD production," said Hutchinson. "Although it is strictly a concept, is a quite realistic."

Design target

From every angle, looking at some of the ground all HD a dedicated off-road performer, with boldness, enhanced functions complemented by a wide track and a high level.

Bumpers are designed to improve simplified approach / departure angle and incorporate tow hooks mounted on frame - with integrated mud flaps. A large air flow optimized lattice maximizes cooling under difficult conditions, while a forced induction hood provides more air for the Duramax diesel engine.

"The design of All Terrain HD is the expression of its qualities - a strong, functional and definitely a professional career," said Carl Zipfel, director of design. "We are excited about the design elements, and explore how it might apply to the GMC future."

Large fender flares extend from the body to cover the tires of 35 inches tall BFGoodrich. Features lockable rear cargo slide box with a series of illuminated grappling hooks, including a couple on the bed floor and two on each side of the bed. A nonskid rubber mat used in the tailgate, and two special compartments within the cargo box provide access to a 110 volt outlet and an air compressor. A bed composite liner with a single "circuit" model provides a protective cover for the bed.

All chassis and suspension of the earth

Based on the chassis of trucks Sierra 2011 HD, HD Off Road has a fully boxed steel frame with exceptional strength and torsional stiffness. Including the suspension of production models "new independent front and rear suspension spring asymmetric, but with a larger track 73 inches (1853 mm) (front and rear), which improves stability during off-road and highway driving. Sierra 2500HD Production has front and rear track of 68.8 inches (1748 mm) and 67.3 inches (1709 mm), respectively.

A ride height for increased ground clearance of 21.1 inches (536 mm) on the rockers and 11.8 inches (300 mm) on the skid plates while specialized Fox off-road shocks deliver exceptional depreciation on hard ground . They were created specifically for the HD-road, with specific valves. The shocks feature visible, fluid reservoirs remote - connected to the shock body by tubes to measure - installed in the wheelhouse liners and paired with a shock front and rear bumpers. They add compression damping and rebound more more controlled, helping to increase control, stability and handling.

All Terrain HD is also an electronic cut-off front stabilizer bar, which allows a greater ability to crawl on the rocks. The driver simply pushes the button in the cab to disconnect it from the front suspension.
Custom upper and lower control arms front suspension is designed to work with Fox in off-road jounce shocks and disturbances, and supports a higher ground clearance and ride height. Contribute to the wider track, as well as an aggressive 20-inch machined aluminum, all-terrain tires. The wheels are deep, six-spoke broken items, and the construction of a reverse a drop-plate method, which guarantees optimum strength. They also feature a mixture of satin anodized aluminum surfaces that offer the durability and appearance fee, which integrates the body Iridium met.

A complete system of protection under the composite body protects all HD broadcasts of land, transfer fuel tank, exhaust system and the differential shaft. It starts with the front bumper, wheel under the truck and taken to a composite material, covering a shoe with front suspension skid plate. The casings are also mounted on the transmission components, while the plates slip front differential and rear are mounted directly. The rear bumper is integrated into the rear deck.

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