For future searchers on the subject: F. J. Lahme is right on the money. I have changed mounts on the 6 cylinder W124s and on the W123s and this is certainly much tighter as far as clearance goes and at first seems downright impossible to get these huge mounts out and in. Only variation I noted was that by lifting the engine very high I did not have to remove or loosen the exhaust at all. I did remove a plastic shield at the driver's side subframe near the radiator though for that side. I had also removed the drag link and steering damper beforehand for replacement at the same time which helped with access. Not having to deal with exhaust bolts was great. I worried that lifting the engine so high would possible crack the exhaust somewhere, but so far no issues noted. My high speed (slight rythmic) vibration is now completely gone.

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2008 GL320CDI 6K
1970 280SL 112K
1982 240D 210K (Sold)
1973 220D 220K (Sold)
1967 200D 160K (Sold)
1992 400E 139K (Sold)
1988 300E 148K (Sold)
1987 300D 257K (Sold)
1991 300E 108K (Sold)
1987 300E 131K (Sold)
1978 300D TMU (Sold)
1980 300D TMU (Sold)
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