...since I've thought about this but this picture prompted me to think again
This is actually a second generation W126 sub frame and trailing arm assembly... but it got be scuttling off to the Russian EPC site (
EverythingBenz - Mercedes-Benz Forum and Web Search Using Google) to have a look at those lovely aluminum trailing arms.
Here's the first generation W126 sub frame
And these are the aluminum trailing arms
Part 116 must be a big bit of the anti-dive mechanism. There must be a big bit that goes across the back of the car there...
I said ages ago I'd go and make some measurements - I never did... but I might have the chance to see some real ones soon. Stay tuned!