Looks like an inside-out version of what the Herbst's use... Does it allow any radial movement along a plane parallel to the chassis longitudinal centerline? (Sorry for the gobledygook, but how else can it be said?) It doesn't look like it. If not, it may be an invitation to trouble, unless they are relying on the upper control arm to flex.
<font color=orange>The best ideas are the ones that look obvious to the casual observer.</font color=orange>