Ralph I had the same problem and noise. I called Ray and had a long talk on the phone with him. I was told to hold both the upper and lower mounting clamps and see if I could still feel the play when I tried to move them Mine eventually got tracked out to the arm on the motor that hooks up to the parallel arms. Ha a dry bearing from the factory and it was worn. New bearing and all was well. Just a thought, it is a slow gentle process but may reveal where the issue is. Good luck .