My problem was that with the standard circlip groove on the Koni's and King springs, the front was too low and the rear too high.
So, I bought and installed the Whiteline springs, and still, too low at the front and too high at the rear. So then we machined new grooves (the Koni dealer in Vermont) in both front and rear shocks and refitted. So the fronts were higher, there fore pre load on the springs, and the rear was lower, so no preload on the springs.
the heights though, are spot on. 345 front and 350 odd at the rear.
The squeeking sounds to be soming through the top of the shock, but that could just be the tranmitting of the sound through the steel.....
Stoopid cars.