Whirring Noise - Rear Differential?
Hey All -
I have a 2001 V70 XC with approx 110k. Its in great shape, and has been fantastic for the year or so that I've owned it. But recently, I've been hearing a loud oscillating 'whirring' noise.
It becomes noticable at around 40mph, and gets louder and faster in the oscillation till about 50mph, then subsides and gets quieter at highway speeds. It doesnt seem to have anything to do with the transmission as it happens in both drive and neutral.
I'm guessing this may be my rear differential drying out and maybe needing to be flushed/checked? Anyone have other ideas?
I'm on a fairly tight budget... So hopefully it won't be too bad to fix.
Thanks for any insight!