I didn't see you mention where the squeak is coming from? Uppers, lowers one side or both. As mention by others if not properly greased at installation there is a possibility of noise. Also what was the shop able to achieve with the alignment? What spec were you shooting for?
James, the noise is coming from the upper bushings that are assembled with both shells right out of the bag. How do you grease them, take them apart? Pretty sure it would take a hammer, bushing driver and vise.
