Is this a common problem with the CS? What will the symptoms be? How difficult/expensive is the remedy? Thanks
Common problem to all 360 and 430 cars (they share the same suspension). Replace with Hill Engineering balljoints - they are made from stainless steel, far superior to the chrome plated OEM joints (which you cannot buy on their own). 1 hour labour per joint. They are DIY but they have to be glued in. Here's some info from when I did mine: www.ferrarichat.com/forum/showthread.php?t=320586&page=16
The Hill Engineering ball joints are available in stock at Ricambi America: Lower Ball Joint: http://www.ricambiamerica.com/product_info.php?products_id=284220 Upper Ball Joint: http://www.ricambiamerica.com/product_info.php?products_id=284221 .