Do anyone know the twelve point socket size for the differential pinion nut on the w123 300d?

Mesalm its on the forum .But a quick way to find it is google this-

Rear End Pinion Seal 1984 300 SD

It will be the first in the search when it opens up.
You need to be very careful doing this or you can squash the crush tube .The you will need to strip it down .

I count find it here on this forum with a word search prior to making my post.

I know his has come up...

30mm I think.

Same size as trans yoke nut.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

What is a crush tube?

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84 300SD
85 380SE
83 528e
95 318ic

Thank you