i had a left rear wheel break the center on my wife's 76 chrysler, going down the interstate at 75mph. by the time it exited from under the 1/4 panel, it went straight up in the air !
you shoulda seen the cars behind me dodge that thing. biggrin when it came down, it slingshotted over the guard rail into the woods.
then there was the sparks from the u bolts grinding down on the concrete.
luckily, no one was hurt, and no damage to anyone behind me.
beer