floor jack converter for fitting on a tranny
I bought this same one, problem was I couldnt get the car up high enough. My situation I had the jack stands about half way up (as high as my jack would lift). Even with the jack all the way down there was no way I was getting the trans slid out from under the car. I would have had to take it off of the adapter and set it on the floor. So I just muscled it.
I will say that the adapter above seemed like it would work well if I could had used it.