Front suspension experimentation

Are you still using the 9" spindles?
I have lost two of those both on street driven 6-banger cars. In both cases it was the right side and both on slow-speed right handers, and off the brakes.
It's like they just went on vacation; snapped off at the spindle-nut and the wheel took off into traffic
I'll never use a 9" spindle again for anything other than wall-art.
Both were Barracudas one a 69 the other a 68