While the new 2010 Dodge Ram Heavy Duty and 2011 Ford F-Series Super Duty pickup trucks trucks feature significant sheetmetal changes, alterations to their frame and running gear are minimal. Not so, apparently, for the 2011 Chevrolet Silverado and GMC Sierra HD pickups, according to Brent Dewar, vice president of the Chevrolet global brand.
"We are coming with a next generation Silverado and Sierra HD next year,” Dewar said Tuesday afternoon in a web chat hosted on GM's FastLane Blog. “It will have a completely new chassis and a new Duramax diesel with 2010 emissions."
In August, we presented a first look at GM's new 6.6-liter 'LML' Duramax V-8 clean diesel engine but this is the first official word from GM that we've heard about an all new chassis for the 2011 HD pickups.
Brian Goebel, Chevrolet truck spokesman, confirmed the coming update.
"We will have very significant enhancements, including the chassis, on top of the powertrain changes next year," Goebel said.
The current 2007-10 GM Heavy Duty pickups carried over the earlier three-piece heavy-duty frame.
http://news.pickuptrucks.com/2009/10/2011-gm-heavy-duty-pickups-to-feature-new-chassis.html