Mines lower than that, I just took it to the ford dealership (actually the only shop that didn't ***** about me lowering) and asked them to correct camber and allign it. They did it without complaint, said they got it as close as the could but i'd still have a tiny tiny bit of neg camber as mine already had to be adjusted long ago because it had a camber problem stock. didn't bother me though, just better turning with my neg camber. Anyways, they provided the adjustors, it all cost about 100-150. As far as lowering and problems... since you didn't lower it that much, after a very long while your shocks will wear out. Other than that.... nothing unless your ball joints were already bad to begin with?