I have two items I would like all your help with. The first is how to properly adjust the 1977 automatic transmission. I was going to go thru all the vacuum items I have read about here, but just saw that the vacuum controlled transmission didn't appear until 1978.

Next, this is more of an opinion. I am not aware of when the previous owner changed the fluid and filter. I have a new filter and plan on draining the trans and torque converter. Should I change the filter? I have read/heard information on if your trans is slightly worn, the somewhat plugged filter is giving added line pressure to the system, therefore the new filter will cause future slipping. Fluid replacement is also the question. I have read people say only use MB trans fluid, but then others have said Dexron III. I currently have some Valv High Mileage Dex III, good idea? Also is using Seafoam trans tune prior to doing the job and also Lucas auto trans additive when replacing fluid? The current fluid is still nice and red and doesn't have any burnt smell. But I would still like the information even if you guys say not to change it based off of the condition of the fluid. I would like to do it so I know when it was done for future reference.

__________________
Tony
1977 240D WVO converted