Center driveshaft noise

[Eyvind Spangen]

I get a loud, metallic *clunk* from the center driveshaft if I don't shift
smooth or if I release the gas pedal and step on it again.. I took a look
under the car, and if I twist the center driveshaft, the same noise will
come from inside the front part of it - between the center bearing and the
transmission. It almost sounds like it's something loose inside.

Anyone have any ideas what this can be? Car has got 190k miles now..

-- 
E. Spangen