Navigation, Heated Leather Seats, Four Wheel Drive, Turbo Charged, Premium Sound System**, WiFi Hotspot, Cross-Traffic Alert, TRANSMISSION, ALLISON 10-SPEED AUTOMA. GOOSENECK / 5TH WHEEL PREP PACKAGE, ENGINE, DURAMAX 6.6L TURBO-DIESEL V8. TECHNOLOGY PACKAGE, AUDIO SYSTEM,... via CarSoup