MPT for BC7?

As we know, SUBARU Legacy has All Wheels Driving system transferring driving power by means of transfer clutch with multi-plates clutch plates and some tight corner braking effect is experienced so often after 150,000km use. My BC7 has the same inconvenience without exception. It is relatively easy to obtain the replacement parts for that if the parts number is noticed to the dealer. Unfortunately, BC7 LSi US model is the only one that had been imported by Fuji Heavy Metal Industry Co. regularly from ISUZU and SUBARU Automotive, Indiana, so out of domestic model in Japan, the number is vary rare, below 50 in total. Consequently, SUBARU customer relations head office has not enough information record, this is why I have difficulty in obtaining the matched genuine parts number. I must inquiry again the number because the number yesterday was the one for EJ18 model with 4 clutch multi- plates showing 4 plates designing, parts illustration shows that for 2,2L NA model with 5 plates independently. How about asking that for BF7 Japanese domestic model that had been existed regularly in the catalog? Complicated but interesting examination would be the task for the time being for me.