2011 GMC Sierra 3500HD III (GMT900, facelift 2011) Crew Cab Long Box 6.6 Duramax TD V8 (397 Hp) 4WD SRW Automatic
3.3 kg/Nm, 306.6 Nm/tonne
8.5 kg/Hp, 117.4 Hp/tonne
6.6 Duramax TD V8 (397 Hp) 4WD SRW Automatic