Scarebird, is it safe?

The larger ball joints on '73 up A bodies was more a function of parts standardization than anything else. One ball joint serviced two car lines (A and B bodies) with just a minor mod. In over 40 years I have only seen 1 lower ball joint failure on an A body ('71 Dart), and I doubt it would have failed if the idiot driver had not hit a median curb head on at 60 MPH. He also bent the K member, trashed the oil pan, and cracked the transmission case. The Scarebird kit is a great idea, seems well made, and gets the job done for not a lot of money. If it used Mopar parts it would be on my Valiant. I don't trust anything produced by GM enough to put it on my car. Personal quirk.