This Sierra 2500 is bone stock with absolutely no modifications and meticulously maintained. From factory, the Sierra 2500 Quadrasteer SLT was equipped with the 6.0L V8 with auto transmission and auto 4wd, 2-hi, 4hi and 4-lo transfer case. For towing, this truck is equipped with the Quadrasteer rear steering axle, 3/4 ton rear springs, extended tow mirrors, 5th wheel ready towing package, GMC tonneau cover, running boards and exterior lighting package. This is ready to tow anything, if that's what you're looking for. Inside, it's fully loaded with heated leather seats, Bose premium sound, rear entertainment system, multi-function seats with driver memory settings and dual climate control. Two Bose headsets are also included, which came with the truck when new.