2007 Gmc sierra 2500hd specs

2007 Gmc sierra classic 2500hd duramax specs

2007 Gmc sierra classic 2500hd specs

2008 Gmc sierra 2500hd diesel specs

2006 Gmc sierra 2500hd specs

2006 Gmc sierra 2500hd duramax specs

2008 Gmc sierra 2500hd specs