What transmission does a 2011 GMC Sierra have?
What transmission does a 2011 GMC Sierra have? 2011 SIERRA 1500 AND SIERRA DENALI Powerful Vortec-based powertrains, backed by fuel-saving six-speed automatic transmissions, help Sierra models deliver among the industry's best fuel economy and performance – all with responsive ride and handling traits, and an exceptionally quiet driving experience. What kind of transmission does a GMC Sierra 1500 have? Previously the 10-speed automatic was only available on GMC Sierra 1500s equipped with either the 6.2-liter V8 or 3.0-liter Duramax diesel engines, however, it will now be standard on Sierra SLT ... Where to buy a 2011 GMC Sierra 3500HD? 2011...