They are upper control arms for better ball joint angles and proper camber and caster.
IMO the shock spacers are the worst thing you could do. It would make the tie rod and CV rod angles way worse. Gaining height, but not travel.
Strut spacers are simply a piece of steel that sits between...
so reading though all this, let me get this right. replacing the stock tie rod ends with these icon tie rods the consensuses is that the steering rack will be the weak point then? Is this just a theory or proven?