8-Speed Automatic, Dark Walnut/Slate Leather. Recent Arrival!Summit White 2019 GMC Sierra 1500 SLT RWD 8-Speed Automatic EcoTec3 5.3L V8Available at Mitch Hall in Lamesa. Mitch Hall in Lamesa, has access to over a thousand Certified Pre-owned, Used and New Cars, Trucks and SUVs. We have competitive financing opportunities, along with a service and parts department that is here to serve you! We know that our customers have high expectations and we aim to meet and exceed those standards each and every time. We are your home town dealer with a home town feel and you will love doing business with us no matter where you are located! Allow us to demonstrate our commitment to excellence! Come see us or visit www.mitchhallchevy.com.