Dunno what's legit, only what I usedWhat thickness do I need to lift a school bus full of nuns and kids?
It hasn't killed me so far (famous last words )Thick enough that it'll support the intended load.
That's what both of my floor jacks have, and the ghetto extendo-dong works on either one.You guys have jacks that the saddle is attached?
I've never seen one that wasn't just held in its hole by more than gravity?