I understand your point but you are not always offroad and its not always you when a jack is needed. If it your wife or you are on tarmac your solution is useless. The adapter was created by my wife because centering a post jack where the factory recommends is not the safest or the easiest for many. Im not the least concerned for my self as I can survive but when my wife/daughter is traveling to Mexico as she frequently does I want to provide her with something she is comfortable with that works and is safe. Factory mechanical jack ( at least with Toyota) is an extremely reliable jack. Hate on the adapter all you want but it makes jacking safer and easier even for someone like you that feels they have it all figured out, it a safety product that works for a fraction of the cost of a Safe Jack.
Understood. That makes sense.
BTW I'm not hating on your adapter and I'd probably have gone that route if I drove a Tacoma rather than my 9000# Ram 3500. My comments were merely reflecting on your constant hate of the SafeJack that is significantly more capable than your solution. Your solution is a non-starter on an HD truck or the 15k pound and up trucks that are being talked about in this thread. This is the Earthcruiser, Earthroamer, GEV forum FWIW and comments about a Toyota factory jack adapter are, at best, random noise in this thread.