Did you guys make sure that the mating areas of the hub and the rotors/discs, were completely clean and smooth before fitting the replacement components? It takes very little hard material to form an obstruction and put things out of true.
In affect the wheel/lug nuts comprise the attachment for both the wheel and disc/rotor to the hub. This arrangement is common and not restricted to the SVX. However somehow the SVX has been deemed to be in some way specially sensitive in respect of wheel/lug nut tightening torque.
This theory has been questioned by our most reliable practical authority, and I too can find no reason for this being applied as a particular negative against the SVX. Any car, and there are many, will have problems if there is hard foreign material obstructing the mating faces, or the nuts have been grossly badly tightened.
