Onyx Black 2015 GMC Sierra 2500HD Denali 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel Odometer is 18480 miles below market average! Recent Arrival! Allison 1000 6-Speed Automatic, 4WD, Black Leather.Who We Are No gimmicks, no tricks, don't let anyone tell you otherwise. We'll show you why we are #1 - Why we sell more new Buick GMC vehicles than anyone else in Oregon or Washington and why that means we have a better inventory of pre-owned vehicles, including fresh trade-ins at the best prices. Call for details.Plus license and title, and $250 title and registration processing fee. Price does not include a charge for 0.40% Oregon Corporate Activity Tax. A 0.5% state privilege tax will be added to new vehicle sales Not all sales at MSRP. Some of our Pre-Owned vehicles may be subject to unrepaired safety recalls. Check for a vehicle’s unrepaired recalls by VIN at http://vinrcl.safercar.gov/vin/