I recently had a blow out with the tow king tires and found myself at the side of the road wishing I had a jack with me. I just recently got this used 37QB and haven't gotten everything together for it yet. Since I got it used I don't have any manual that says where to put the jack when changing a tire. The manual I got online (2015) says to let someone else handle it. Given that may not always be possible, or that I just don't want to pay someone else to do something I can quickly do myself, where does the jack go and what would be a recommended lift capacity for the jack? Will a 3 1/2 ton jack do? I think the 37 QB is around 12,000 lbs dry weight. Thanks in advance.