Anyone know if these are replaceable (front and rear) without having to take the drive shaft out? The shop manual does not show this as a separate job--only as a part of removing the entire drive shaft.

I suspect the transmission would have to be supported by a jack and the mount removed to get to the front disc. I just don't want to get into removing the entire exhaust and drive shaft to change the discs. Any input?

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1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles