296 squeaky front suspension noise

Yes, I have had the same recurrent problem for 19years. It seems to happen more distinct and more often in warmer weather. I was told by my independent ( ex-Ferrari Lake Forest ) mechanic that it is a suspension issue. How involved, we do not know at this point. I have used several mechanics who have tightened up the front suspension as well as replace a few suspension bushings, but it seems to recur 200-300 miles layer. I am attending a Ferrari Lake Forest Q and A dinner down at the dealership on Wednesday. I was informed by my mechanic that he remembers that specific issue on 1985-1988 328 models dealing with our mutual problem. He said it was definitely not an official recall, but he remembers the dealership offering some sort of "courtesy discount" for this very problem. I will query them about it and get back to you. Meanwhile I continue to drive it as it handles fine, but rather embarrassingly noisy cruising around town. I have tracked my '87 328 GTS on three occasions between 2013 and 2016 with official tech inspections and had no problems, so I have been rather reticent to make a big deal about it. If you find out anything from your guys before I do, please contact me.