With that 292-horspower V8 and its 300 lb.-ft. of torque under the hood, a two-wheel-drive Explorer Sport Trac will pull up to 6,800 pounds, or about 1,500 pounds more than the V6; four-wheel-drive models pull about 150 pounds less. A Class III tow hitch with a seven-pin connector is optional, replacing the standard Class II/four-pin receiver.