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GM News Feed: Enhanced Allison 1000 Transmission Helps New GMC Sierra Heavy-Duty Trucks Do More With Less Fuel


Bruce Nunnally

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PONTIAC, Mich. – The new, 2011 GMC Sierra Denali HD, 2500HD, 3500HD and chassis cab/box-delete commercial trucks are designed to deliver greater capability and improved fuel efficiency.

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Bruce

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