Pepperdust Metallic 2017 GMC Sierra 1500 SLT 4WD 6-Speed Automatic Electronic with Overdrive EcoTec3 5.3L V8 6-Speed Automatic Electronic with Overdrive, 4WD, Dark Ash/Jet Black Leather. This 2017 GMC Sierra 1500 SLT is available for sale just a country mile down the road from Corpus Christi in Aransas Pass, TX. Recent Arrival! Awards: * 2017 KBB.com Brand Image Awards Make the short drive from Corpus Christi to Aransas Pass, TX and have your new 2017 GMC Sierra 1500 SLT sitting in your driveway this evening! Reviews: * Strong combination of fuel economy and power; comfortable, quiet cabin; compliant ride quality makes it suitable for daily use; many available configurations and trims Source: Edmunds