I read in the service manual that's the way to level the car if it has differrent height on left/right side.

Look here:
https://issuu.com/heydownloads/docs/...re__complete_s

Page 32-33. So maybe very normal, and when I talk to my workshop he says that's how we do. Now I hope that it's possible to compress the spring enough to replace the rubber pad which sit on top of the spring without taken everything apart agian. I replace the 5 mm pad with a 9 mm which I already have (I think the 13 mm will be too much). The spring sits less than halfway out on the arm so that extra 4 mm will be about 10 mm at the wheel. The doors, windows, fenders and hood all sit perfect with no indication to be out of place.

So what left to do now:
Replace the 5 mm pad with a 9 mm pad on rear right side to get the car in level, bad that I didn't do that when the rear chassi was apart already.
Replace the lower front rubber bushings with some of higher quality. They are very bad today. At the same time I replace the springs and pad shims too.
After this I can adjust the rear and front toe-in and check the camber and caster. I have already check them with my DIY instrument, only the toe-in front is totally out of adjustment because of the lower front bushings is bad.

Toe-in measurements:
Chrysler Crossfire: Wheel angles, First Toe-in measurement

/Lars