HousTune Auto Sales on Instagram: "🛻 FOR SALE: 2015 GMC Sierra 1500 SLT – Power, Comfort & Professional Grade Performance! 🛻 ✨ Need a tough, stylish truck that works as hard as you do? This 2015 GMC Sierra SLT brings bold looks, V8 power, and premium comfort — all in one solid package. ✅ 5.3L V8 Engine – Power you can feel, great towing capability ✅ Automatic Transmission – Smooth and responsive ✅ SLT Trim – Leather seats, heated seats, touchscreen, premium audio ✅ Crew Cab – Full-size 4-door