6.6L DURAMAX DIESEL!!!!! 4X4!!!! 6 SPEED ALLISON TRANSMISSION!!!!! THIS TRUCK RUNS GREAT........ RIDES GREAT,,,,,,,, HANDLES GREAT........ AND HAS POWER TO SPARE,,,,,,,,,, SLE TRIM WITH Z71 OFF ROAD PACKAGE,,,,,,,,,,, IT IS VERY NICELY EQUIPPED,,,,,,,,,,, ALL POWER OPTIONS,,,,,,,,, INCLUDING BOTH FRONT SEATS,,,,,,,,,,,,, BOSE STEREO......... CD........ DUAL CLIMATE CONTROL......... ON STAR.......... AND MUCH MORE.......... IT IS SET UP FOR TOWING......... TOW PKG WITH FACTORY BRAKE CONTROLLER,,,,,,,,,, STOP IN AND TAKE IT FOR A TEST DRIVE TODAY,,,,,,,,,, FINANCING AND EXTENDED WARRANTY AVAILABLE!!!!!