Upper shock mount broke clear off. Flippin' unbelievable!

Without knowing HOW it's done, there's got to be engineering involved in the spacing of the upper and lower mountings relative to the suspension travel and the extended/compressed lengths of the shock absorber. If the trailer is jerking on the shocks when the suspension goes to top out, or pounding on them on its way to bottoming, it's got to be rough on mounts, shock bushings, shocks themselves.