My 2001 H6 auto Outback has developed a mild shaking/noise when taking off from a start. Once underway there is no issue. There is no apparent bearing whine. It seems to come from the propshaft or rear or the transmission. Does not happen with gentle acceleration.
I looked under the car and could see the rubber bushing for the center bearing seems quite soft and the shaft sits towards the bottom, not centralized. I was wondering if it's just a matter of replacing that rubber support? There appears to be fresh scraping on the shaft where it might be touching the heat shield on take off (could not see clearly as I didn't have it on jackstands, just crawled underneath).
This model does not have a FWD fuse, so I can't test it with no rear power. Any ideas?
Rod