Posted by Yale on August 16, 2002 at 15:49:48:
My 330GT has a drive line vibration in certain gears (mostly 4th and overdrive), and at certain rpms, (mostly around 4000) but not in other gears at this rpm. I know others have written to this esteemed list about this problem and have gone so far as to rebuild their drive shafts without solving this issue.
Some folks have said, "that different cars have different harmonic resonaces, that's just the way it is." Others say, "it can't be in your drive shaft because it doesn't happen in all gears or when you depress the clutch so it must be a motor issue/problem," and others remark, that Ferrari later went to a 2 motor mount system instead of the 4 mounts as on my car because this is a general, across the model (330GT) issue.
Any thoughts about any of this from the four wheel brethren out there? I would most appreciate any comments you have.
Thank you.
Yale