Check to make sure the rotors are on properly. I did the same thing and
the rotors did not go on squarely over the hub. I was surprised as well but
that's what the dealer told me and it was true.
I called the part store where I purchaed the rotors, took them back,
had them turned and all is well. I was told their supplier received a
bad batch, and this must of been part of the batch. Since it's a
family run store, they took care of the problem for me. I've done
many brake jobs in my time, and did not know one could put a rotor on
wrong. Thanks for the tips!!