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2007 Chevrolet Silverado and GMC Sierra Heavy Duty 2007 Chevrolet Silverado and GMC Sierra Heavy Duty

2007 Chevrolet Silverado and GMC Sierra Heavy Duty

General Motors has introduced the new 2007 Chevrolet Silverado and GMC Sierra heavy-duty pickups, with new exterior designs and the choice of two unique interiors. Silverado and Sierra are offered in a range of 2500HD (three-quarter-ton) and 3500HD (one-ton) guise. Silverado is available in WT, LT and LTZ trim; Sierra is available in WT, SLE and SLT trim - all with differentiated appearance and interiors. Chevy Silverado and GMC Sierra 2500HD and 3500HD models will arrive in the first quarter of 2007. A faster, 57-degree windshield angle reduces wind noise and improves fuel efficiency. Silverado and Sierra heavy-duty trucks are offered in regular, extended and crew cab configurations, which are complemented with standard (6-foot 6-inch) and long (8-foot) cargo box lengths. Silverado and Sierra 3500HD models also are available with the Dually dual rear wheel configuration on a long (8-foot) box.





The standard engine is the new, 6.0L gas V-8. It is rated at a best-in-class 353 horsepower (233 kW) and 373 lb.-ft. of torque (506 Nm) on single rear wheel configurations. Variable valve timing helps improve performance and fuel economy. A new, Hydra-Matic 6L90 six-speed automatic transmission is paired with the engine. A cleaner, more powerful Duramax 6.6L turbo-diesel engine is also available, with power ratings increased to 365 horsepower (272 kW) and 660 lb.-ft. of torque (895 Nm). Upgrades to the engine and a new diesel particulate filter system help provide a 90-percent reduction in particulate matter and a 50-percent reduction in NOx (compared with current standards), meeting a new federal government mandate. All diesel manufacturers are required to meet the new emissions standard, starting in calendar year 2007.

The renowned Allison 1000 six-speed automatic transmission is partnered with the Duramax 6.6L turbo-diesel engine. It delivers good fuel economy, quietness and control. It features a class-first range selection function, which allows the driver to easily select the desired gears to match driving conditions, such as towing a trailer on a steep grade.


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