[RickMN]

Well, let's see, you greased the slide pins (I hope you didn't grease the piston) and you put in new pads. The squeak is once per rotation, so that would narrow it down to either a wheel bearing, CV joint, or possibly a scraping of the dust shield. But the fact that it changes when you turn left leads me to suspect a bearing--except that bearings usually don't squeak when they're going bad. They rumble. One other question, did you change rotors or reuse the old ones? If you reused, you may have a rust ridge on the inner and outer edges that are causing the noise.