Well, I worked under those center post lifts for years. After time goes on you begin to think about how safe hoists are. I got out of that business and did a different job. After one of my cars fell on me in the garage at home, many years ago, just up on a jack and blocks, I began to think, ya not a good thing to do. And over the years ya hear of people getting killed in their yards, while the family watches. As I got older and not wiser, my son started workin at a ford dealership. Well all hoist are two post. Allways worrying about my son. And when I went in to visit, I was very very nervous about being under the hoist. So when son wanted to put a hoist in , I tryed to get him to use a four post. Well he had his argument about four post and two post. So he won. I don’t like being under anything jacked up. As said, what really keeps the post in the concrete. A little heavy one way or the other, things are of balance. Any way, so far so good.
I have seen guys put a tall jack under the left front end of the vehicle and let the vehicle down to take the weight off that Front left suspension to do work on it. I stepped back a number of feet to see what happen. Nothing did.
Son and I were under the rambler today and was helping. Not good for me. Just have to get use to it a bit, again, I guess.
Noel.
And, lucky me, I didn’t really get hurt when my car fell on me, was pinned for a while, but was able to wiggle out.