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Powertrain details
The GMC Sierra All Terrain HD concept is propelled by the new, production 6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission powertrain combination offered in the 2011 ...

How to Wear Safety Belts Properly
This section is only for people of adult size. There are special things to know about safety belts and children. And there are different rules for smaller children and infants. If a child will be r ...

Replacing Safety Belt System Parts after a Crash
WARNING A crash can damage the safety belt system in the vehicle. A damaged safety belt system may not properly protect the person using it, resulting in serious injury or even death in a crash. To ...