I am considering installing a cheap set of Eibach Pro springs from a S80 on my FWD '02 V70. Eibach lists different part numbers, but H&R sells the same springs for both models. This makes me think any difference b/w the Eibach springs must not be all that significant. Eibach customer service says that the chassis must be significantly different enough to warrant different part #s, but I'm considering trying them anyway. What do you all think?