2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box 6.6 Duramax TD V8 (397 Hp) 4WD Automatic
3.2 kg/Nm, 314.2 Nm/tonne
8.3 kg/Hp, 120.3 Hp/tonne
6.6 Duramax TD V8 (397 Hp) 4WD Automatic