95 v6.

The other day I had my rotors and brake pads replaced.. and after the replacement.. every time a slightest turn is made i hear some sort of squeek coming from the area of the rotor.. it kind of sounds like a *ting* sound.. So.. I decided to jack the car up and check it out myself.. and nothing.. that I could see.. So i took it to a friend of mines that might have a clearer idea of what it could be.. he told me it might have axel problems.. whats the possibility of that being true? There was no sound before the rotor replacement.