No, you are wrong. Never would I change a K frame for no reason. I have run them all for decades. The only K frame I changed was a 75 or 76 for a 67 K frame. The 75-76 was falling apart. Geometry is all the same except for the sway bar tabs. In use I cannot tell any difference and I have driven them on the street for hundreds of thousands of miles. If you have a Formula S or a 340 car you have all the good stuff in the front end. As far as the fail safe motor mounts, I prefer the biscuits anyway, a simple drill and tap will do it, plus I tie the drivers side head boss to the frame rail.
