Gmc sierra 2500hd duramax diesel specs Read Also: Gmc sierra 2500hd duramax diesel mpg 2008 Gmc sierra 2500hd diesel specs 2006 Gmc sierra 2500hd duramax specs Used gmc sierra 2500hd duramax diesel 2008 Gmc 2500hd diesel specs 2002 Gmc sierra duramax diesel specs
