Not really "basically the same"... Our brackets are bolt-on (not welded on to the frame) not to mention CAD designed using OEM 3D models direct from Ford, laser cut, CNC formed then welded on precision jigs made from pieces of an Eseries frame and Fseries Dana 60 to ensure fit and repeatability.
Every AJ's build I've seen is free-handed plasma cut (or cut off wheel), hand ground and "welded to fit".
Very little similarity other than the basic term "radius arm suspension".
My van was recently converted at AJ's, all brackets bolted to the frame.