For Export 2013 GMC Sierra 2500HD Options: Rear Axle 3.73 Ratio Remote Keyless Entry Work Truck Preferred Equipment Group Emissions Federal Requirements Bluetooth GLASS SOLAR-RAY DEEP-TINTED SKID PLATE PACKAGE Frame-Mounted Shields SEATS FRONT 40/20/40 SPLIT-BENCH 3-PASSENGER DRIVER AND FRONT PASSENGER MANUAL RECLINING TRANSMISSION ALLISON 1000 6-SPEED AUTOMATIC ELECTRONICALLY CONTROLLED TRAILERING EQUIPMENT HEAVY-DUTY AUDIO SYSTEM AM/FM STEREO WITH MP3 COMPATIBLE CD PLAYER ONSTAR 6 MONTHS OF DIRECTIONS AND CONNECTIONS PLAN ENGINE DURAMAX 6.6L TURBO DIESEL V8 B20-DIESEL COMPATIBLE GVWR 10000 LBS. (4536 KG)