Does anyone know the difference between the JLM20706 and JLM20712 coils? All I can find is one is for adaptive control suspension and the other is not. I don't see any visual difference. Are the spring rates different possibly?

 

I don't have specs but had found this. I would guess that the spring compression rate would be different.

4.0 Litre supercharged Adaptive control damping Convertible JLM20706
4.0 Litre non supercharged Convertible Non adaptive damping JLM20712 https://www.jaguarforums.com/forum/x...ension-207971/