Clunking sound, rear suspension 88 5kq

[Ben Swann]

Trap arm bushings that worn will leave have your rear end walking out on 
cornering - not likely and a major job to replace.  But you can easily 
visually inspect them, so do that for sanity check.

More likely the trap link itself which normally make a squeek rather than a 
clunk when going south and may just need lubrication

or..

Subframe bolts have loosened up over time - get under car and have someone 
bounce it up and down while feeling the subframe bolts  all four of them - 
if you detect movement, they are loose.  I have had a few 5ktqs with this 
problem and drove me crazy on my first as I had just about replaced all 
other rear suspension before resolving this as actual culprit.  Fix was 
asy  - just snugged up on the bolts which were about 2 turns loose.  Made 
the car drive like brand new after making noises like it should be committed 
to the boneyard.

Ben

[Date: Wed, 16 Nov 2005 17:23:24 -0500
From: SJ <syljay at optonline.net>
Subject: Clunking sound, rear suspension 88 5kq
To: quattro at audifans.com
Message-ID: <000701c5eafc$5bffb4f0$b214c444 at dell450>
Content-Type: text/plain; charset=iso-8859-1

Patient: 1988 5KQ
Problem: clunking sound coming from passenger side rear on bumps.

I suspect the trapezoid arm bushings are worn out.
Which bushing is the main culprit for the clunking sound?

I have a picture of the rear suspension with part numbers posted at:
http://www.geocities.com/syljay46/audi/88-5kq_Rear_Suspension_Entire.gif

My part guy is a bit confused about the bushings.
I need someone to verify that the bushing part numbers in the picture are
correct.

Thanks

SJ
85 Dodge PU, D-250, 318, auto
85 Audi 4k - - sold but still on the road
88 Audi 5kq
90 Audi 100q]