Yes the euro driveshaft savvy shops balance the whole driveshaft as a unit as did the factory. This is why it is necessary to mark the driveshaft if you take it apart at the splines so you can properly align it upon reassembly.

There is a specialty MB/BMW driveshaft shop in Arizona that does excellent work on these shafts. IIRC their name is Beier or something like that.

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2001 SLK 320 six speed manual
2014 Porsche Cayenne six speed manual

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