Bruce Nunnally Posted February 10, 2010 Report Share Posted February 10, 2010 PONTIAC, Mich. – When customers put their new, 2011 Chevy Silverado 2500HD and 3500HD trucks to work, they’ll find greater capability and improved fuel efficiency. A new 6.6L Duramax diesel and Allison 1000 six-speed automatic transmission powertrain is integral in the trucks’ greater performance, with the Allison transmission ensuring engine power is transmitted smoothly and efficiently in trucks with higher GVWRs. View the full article Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
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