After market bolts that failed on my Duster.

The failure point on those bolts is visible in the picture. I missed it the first time around with my original comments in this thread but discovered it in another post where a different member shared more information and brought up that his alignment settings were changing.

If you look closely you can see that the flats on the reproduction bolt aren’t cut as far down the shank as the flat is on the original bolt. That causes the eccentric washer to bottom out on the shoulder of the bolt before the UCA is clamped in the mount, which can cause the alignment settings to change. If you then just continue to torque the living crap out of the eccentric bolt to solve the UCA movement, without looking for the cause of the problem, you damage the threads and overload the bolt, causing it to shear later.

So the issue is two fold, the bolt was manufactured incorrectly with the flats too short on the shank. But then it was over-torqued instead of inspected to find the issue.

Bottom line is, compare your new parts to your old parts BEFORE you install them. And don’t just over torque things if they don’t work properly at the factory torque spec, it means there’s probably a bigger issue.