I've driven less than 100 miles after replacing struts, upper control arms, lower control arms/brackets, and both outer tie rods. I had an alignment done after replacing everything. Prior to all this work my steering wheel would always try to turn itself back to center. Ever since the rebuild and alignment the wheel no longer centers itself - not nearly as well anyway. There's also a very slight "knock" that is now present when turning the wheel while the vehicle is moving very slowly. I viewed the post-alignment report and everything was right down the middle in terms of specs. Any ideas?