I recently purchased a 123 MB 1984 300D
I got a super deal on a very well taken care of benz because the vacuum system is totally shot.
Today I spent several hours replacing vacuum parts and now have every system run on vacuum working (except for the locks that I plugged off for now)

Everything so far was fairly simple with the use of a mightyvac, but now I am the transmission. It’s not a no brainer like the rest of the system, so I hope to have some advice on what lines need what pressures/vacuum etc.

The transmission currently shifts at high RPMs 1-2 gear and wont shift above 2 at all.