Propellershaft

Help,
I am Stefan from germany.My corvette is a 72 convertible with an 350 engine and
a TH400 autom.
Yesterday I lookt under the car, and i saw that the propellershaft has a
little play (between 1-2mm)at the end or the neck of the automatictransmission.
I hope you could understand me and give me some tipp´s.


Thank you
Stefan

If I understand you correctly, it sounds like it's time to look at the "U" joints for possible replacement. Were you looking because you heard some clunking noises when you get on and off the accelerator?