2006 Gmc sierra 2500hd duramax specs Read Also: 2006 Gmc 2500hd duramax specs Gmc sierra 2500hd duramax diesel specs 2012 Gmc 2500hd duramax specs 2007 Gmc sierra classic 2500hd duramax specs 2006 Gmc sierra 2500hd duramax weight 2006 Gmc sierra 2500hd duramax towing capacity
