[s-cars] Chirp from rear suspension

[kbogach at comcast.net]

I bet it is camber link(s).   I would recommend to look at rubber (or 
polyurethane) boots of both links and if they are not torn than I would 
take them,  took apart, cleaned,  lubricated and reassembled.    Most 
likely it will save you buying new links.  I did it on 2.5 cars and it 
is good after 30Kmi (both links on two 200tq and 1 link on UrS4 )
 If at least one  boot torn ( most likely outer) then I would use 
temporary solution - lubricating through needle,  puncturing the boot 
far most from crack.  You can have a quiet ride for a month or two.
  I actually got a link  with good outer boot from a junk yard and used 
the boot  on my original link as it was in better shape.

Caveat:  you need a good, compact ball joint puller on S4/S6.  I could 
not find any puller which might work on on it.  I almost bought it from 
Snap-on for ~$100 but I was able to borrow it from friendly shop for a 
night.  Type 44 (200tq) has slightly different geometry of wheel arc, 
probably, and I was able to used plain pitman arm puller.

Have doubts?  Sqiuirt WD 40 on the outer end of the links and go over 
bumps.  Forget what I wrote if it still chirps.

Konstantin.