Ford Explorer Sport Trac is another one. But it has to have the ability for its Transfer Case to get in Neutral. Regular Explorers (the SUV's) had to have a "kit" installed. It was really a flash update to the powertrain control module (PCM) plus an LED to indicate that the driver had taken the correct steps to cause it to go into N. Sport Trac (four-door cab with a short pickup box) might have been set up differently. Quite a few RVers tow them. Heavier than a Colorado.
Used to be nearly all 4x4 were towable since the transfer case had a lever and one of its positions was Neutral. No more. It may have no neutral (Nissan Frontier for example) or be electronic where Neutral isn't an option even with modification. BE SURE the model you choose CAN be towed and you know exactly HOW.
FYI, we like manual shifts anyway, so it was easy to pick a Frontier. Towable 2WD or 4WD. Ours is 2WD and a very nice daily driver. Manual shift also opens up the last of the Ford Rangers. In recent model years, the 2000's, Ranger would be the lightest of the bunch since it's available in "work truck" cab. Also probably the most plentiful to pick from.
