88 mph would be a record for me the 240d.
I can get it a little over 70 before I start thinking about the engine blowing up.

I'm going to get some sd springs similar to the ones posted in this thread.

http://www.peachparts.com/shopforum/diesel-discussion/258833-suspension-springs-interchangeability-3.html


Rear W126 springs: 116 324 08 04

I sometimes pull a trailer so the stiffer springs would help. I'll get the 1 nub pads also.

pete