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2013 GMC Sierra 3500HD Crew Cab
Fuel economy:N/A
What's New for 2013 For 2013 the GMC Sierra 3500HD is essentially unchanged.
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2013 GMC Sierra 3500HD Extended Cab
Fuel economy:N/A
What's New for 2013 For 2013 the GMC Sierra 3500HD is essentially unchanged.
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2013 GMC Sierra 3500HD Regular Cab
Fuel economy:N/A
What's New for 2013 For 2013 the GMC Sierra 3500HD is essentially unchanged.
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