wouldnt buy too cheap as it would be a backward step
What do you actually want to gain from lowering it?
Is the rose bearing which the spring pan seats against the rite way up? The black rubber section that fits the underside of the arch will have alot more sideways play if it is and maybe the 10 mm
cheers cm
There should be a gap between top part and the bodywork. It only really stops the strut falling out when you jack up the car / get air over a bridge. The weight of the car pressing down on the rubber donut holds it in place.