Larry,
When you say z bar...you mean a watts linkage? A pivoting center link with a leg on either side? They are normally used as lateral location of a standard hotchkiss drive. Interesting idea though... I could probably fab up something like that. Of course, dropping my roll center and get a few deg neg camber in the process, will go a long way to avoiding wheel tuck.
I'm going to have to model up some thoughts. Thanks for the idea
Dale