Keep in mind that I am not referring to the flex disk that connects the
driveshaft to the transmission. but a 133 mm diameter disk that is
attached
behind the driveshaft flange. It is a rubber and metal assembly. Some
Mercedes have this and some do not.
The shop, www.driveshafts.com, in ****tland, OR, specializes in MB, BMW and
Lexis drive shafts seems to know what they are talking about. They were
recommended in a MB forum. Other shops in the area wont touch it.
There take is that the dampener is no good due to hard and cracked rubber
by
the time that they get a shaft for re-build so they take it off and
balance
it without it.
<weelliott@[EMAIL PROTECTED]
> wrote in message
news:1efbfb96-dcd7-4fc1-bcd8-4d543d1f1701@[EMAIL PROTECTED]
> The disc serves two purposes that I know of. It damps vibration. But
> it also takes care of any misalignment between the tranny output shaft
> and the driveshaft just like a universal or CV joint would do. In
> theory there would be no misalignment. But that would be assuming that
> all motor mounts, transmission mounts, shaft carrier bu****ng
> mounts(not the real name, but the thing that holds the driveshaft at
> the center of the car whose name I can't remember.), etc. are not worn
> or even slightly misaligned. Without this, once your motor mounts or
> transmission mounts start to sag, the bearings sup****ting the output
> shaft of the tranny won't be subjected to extra forces.
>
> I'd find another shop with more knowledge. It's often a good indicator
> of competence.
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