Browse GMC Sierra Mechanic / Utility / Service Trucks on MyLittleSalesman.com and compare listings with prices from $19,500 to $56,500. Sellers include JJ Kane Auctions, Personal Asset Brokerage, Proxy Equipment, and more. Filter by GVWR, number of axles, transmission, mileage, and more to quickly narrow down to the right GMC Sierra Service Truck.