(Hate to tell on myself) Whatever you finally decide for a jack, change your tire in your driveway one time. Just to make sure there are no clutches. I had a flat and I couldn't get the spare off due to the length of lug nut bolt holding the spare tire on was about 3 inches long. The standard tire iron was not long enough to get of bolt off. Now a "deep well" socket is in the tire changing gear. If I would of done a tire change in my driveway, I wouldn't of looked as I did...RV jacked up and couldn't get spare off its holder.