No impact on the wheel? Look at the edge, a chunk was taken out. Theres your impact. Right about 9:30, 10 o'clock.
And look close at this next one, the impact was enough to not only break the wheel, but the freaking hub too. I wont even go into the boulder jammed into the suspension, but do note the chunks of rock in between the caliper and rotor.
Lastly, the drivers side. Look at about 5-6 o'clock on that wheel, theres your impact. Its great becuase it shows exactly how the passenger side came apart.
Sorry, I dont see this as a case of weak parts. But of parts that were subjected to forces past what anyone could expect then to stand.
