The only thing that you need to do is "modify" the nearside inner wing with a fuck-off big hammer , as the spring always seems to rub this side (but not the other) on every single Cossie with coil-overs. This will be the creaking you can hear. If you look, you will see a shiney area worn away where the spring has been rubbing (and making the creaking noise). Hit this with big rubber hammer to "shape" it, and then grease the spring for good measure. Job done.