Hi,

I have an '83 300D that I purchased from the original owner with 140,xxx
miles.  The car overall is in great shape, however the transmission is
starting to act up a little.  It currently has about 160,xxx miles.  On the
3-4 shift it sometimes revs a little under partial throttle.  Under full
throttle or light throttle it is fine.  I have adjusted the pressure cable
on top of the engine and I still get this.  It is probably time for a
rebuild?

Also, I have heard conflicting information about the fluid to use, although
I haven't checked with the dealer yet.  What fluid seems to work best?

Thank you