Suspension problems

[LoweJacks@domain.elided]

My 164 TS is having large problems keeping grip on the road when cornering.  
Entering any corner or bend the car feels unbalanced or unsettled and this is 
at very moderate speeds.  It feels like something is suddenly 'giving' in the 
suspension.  At the moment the roads are wet, but it feels more like driving 
on ice.  I have posted a similar message before on the digest and a number of 
people contacted me all suggesting to check the suspension alignment.  Last 
week I took the car to have this checked, the rear was out, and this has 
helped in straight line running, but has made no difference to taking corners.

To recap on the work already carried out.  New steering rack, a-arm bushes, 
new rubber on the front and rear struts, new drop links for the anti-roll 
bars (middle one not changed - could this be significant), rear trailing arm 
bushes, strut bearings replaced and some other things that I can no longer 
remember, the rear arms are straight and undamaged.  The tyres have all been 
replaced but have made no difference.  Everything has been stripped and 
checked at least twice.  

The only thing I can think of is that under dynamic load, something is moving 
or giving in some way.  The car has been to at least 7-8 garages.  They all 
say that everything looks ok.  After spending a lot of money I still have a 
car that feels unsafe to drive.

The only other point is, how do you tell if the shock absorbers need 
replacing on a relatively stiff suspension set-up like a 164.  I presume that 
the standard 'bounce' test is less effective on cars like this.  The front 
units are approximately 90,000 miles old and the rear ones are about 
40-50,000 miles old, but when pressed there is no bounce.  These along with 
the springs are the only things left to change.

Any advice or help would be gratefully accepted.

Steve
164 TS
Cumbria UK

------------------------------