Syncro 4&4 Discussion and Q&A last answered over 2 years ago.
You may also want to visit the Wiki(pedia) for a more structured index of T25 repair, maintenance, technical and ownership topics (browse for Syncro links)
You can find further syncro specific information on the Syncronauts website.
Ah yeah but replacing things has that effect! If I replaced the furry dice on my rear view mirror id say the van would feel smoother to drive too!
NB: I do not have furry dice on my mirror. I have a Berlin Ampelmann reflector I got when I was on holidays in Berlin. I thought it was a fititng thing to have given that its from Germany too.