Originally Posted by GraphiteGhost

Here is one benefit to 'flex disks' in a drive train, vibration/noise reduction. Now I am not offering this is why they were designed into this system, but it makes a lot of sense. I would not think it was cost driven because there is a lot more cost the way it is (U-joint and everything else involved from the transmission tail to the bell housing), so if not cost then why? Only answer I can come up with, is vibration/noise. Am open to others opinions about why it is the way it is...

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