Originally Posted by
Speedy4x4
If changed, and a single piece driveshaft is installed, gets ride of flex discs for solid u joints, gets rid of the center support bearing, and lighter, less rotational mass.
Mb liked the rotational mass in ours, hince why they used such a massive flywheel.
I don't know about you but I like the idea of a chunk of steel holding my driveshaft on alot better than a piece of thick rubber.
Have you ever seen a flex disc in a truck, hahaha
Flex discs are alot cheaper to manufacture and install at factory, doesn't mean they are the best.
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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