4WD, AUTOMATIC TRANSMISSION, CLEAN CARFAX REPORT, and TOW PACKAGE. 2007 GMC Sierra 1500 SLE1, 4D Crew Cab, Vortec 5.3L V8 SPI, 4-Speed Automatic with Overdrive, Dont miss the wonderful bargain! Your time is almost up on this durable, reliable Sierra 1500, that is simply in outstanding condition. This Sierra 1500 has plenty of passenger space and cargo room galore. It scored the top rating in the IIHS frontal offset test. Thank you for shopping on-line at Californias largest Subaru dealer, Capi