Luxurious truck interior with leather seating, wood grain dashboard and trim, central multimedia touchscreen, and multifunction Denali steering wheel controls.
View Dimensions of the 2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box
View 21 images of the 2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box