You mean, the factory that couldn't get the suspension mounts located with better than a 1/4" tolerance? The factory welds that look like a blind guy did them? C'mon man. These cars were spot welded together on an assembly line that emphasized speed over quality. Anyone with a plumb bob, some basic geometry skills and a Harbor Freight welder can surpass the "factory precision"
Uh huh. How wide were those performance high speed radials? And what was the tire compound rated at?
Ma Mopar ditched that design 55 years ago because it was sub-par. Like 9" drum spindles, it was a poor design that was identified by the factory and replaced with improved, redesigned parts at great cost to the factory. That's not the kind of thing that the factory does just for fun, there was absolutely a reason for it. Maybe that reason wasn't outright failure, but they still decided it was worth the cost in the long run to change the design.
