i would search if i knew what i should search for

now, i will look into that guibo, flex-disk stuff...
thanks for pointing me into the right direction, hopefully i will not have to replace the whole drive shaft, those things are way to expensive for my budget right now.
i just know that a mechanic, whom i know, did some work on the driveshaft for maybe 500$ some year ago for the previous owner, so i guess it was not a very good job then....