first, is there any alphard 200? or did you mean 2004?
secondly, even if the spring fit/compatible each other. i still didn't recommend it since it is not suitable in term of bounce rate, hardness and height. both is different type of vehicle. so not advisable.
need help... i want 2 install an air fuel ratio meter... can i install directly 2 my O2 sensor??? my car is a local honda civic n it doesnt come with O2 sensor... but i install a turbo kit n theres an O2...