Certified 6 Speed Automatic. Great for work! Awesome truck! Come take a look at the deal we have on this hard working 2010 Chevrolet Silverado 1500. New Car Test Drive said ...a smooth ride and confident handling while delivering superior capability and power...among the smoothest riding and quietest of all full size pickups and can be counted on to get the job done... It scored the top rating in the IIHS frontal offset test. They say silence is golden. You'll know what they meant when you drive this truck at highway speeds. Road noise is a thing of the past. This is love at first sight CALL NOW