EXCELLENT CODITION GMC SIERRA, YES 6.6 DIESEL WITH ALLISON TRANSMISSION, ONE OF THE BEST TRUCKS OUT THERE, LOOKS GREAT, VERY WELL DESIGNED INSIDE AND OUTSIDE, LOTS OF FEATURES AND OPTIONS, READY TO HANDLE ANY TASKS, THIS ONE IS FULLY SERVICED WITH NEW OIL CHANGE, FILTERS, BRAKES WRERE INSPECTED AND REFINISHED, BRAND NEW TIRES AND ALIGNMENT CHECKED, COMES WITH ADDITIONAL FUEL TANK WITH PUMP AND DISPENSER, SUPER LOW MILES, A MUST SEE.