If you have to put your mechanic right, then I suggest that you find someone else who actually has experience with MBZ.

There is also a plastic circular bearing in the yoke at either end of the drive shaft. These are what align the the DS yokes in the centre of the flex disks with the trans & differential pins in their yokes during installation. If you are not careful, you can get them well buggered during removal and installation of the DS, so be very careful.

On many MBZ series cars the exhaust and park brake cables do not have to be removed, even though MBZ advises to do so, but again, you need to be extremely careful, so I repeat: do it yourself or find a mechanic experienced with MBZ.

__________________

Don't Chrome them; polish them