Wishbones have the polybushes and crush tubes in them...but...the crush tubes
do not extend past the polybushes- i.e they appear to be too short!
My understanding of this type of set up is that the suspension bracket " pinches" the crush tube and holds it still; this in turn rotates within the polybushes. To my mind, the crush tube needs to extend past the polybush. If it does not, and the suspension bracket pinches against the polybushes... how the heck is it going to work!!
Hope this makes sense to somebody!
Vince