How would you feel about putting the car on jack stands and trying to pin point the noise while in gear? I mean the rear end on the stands and running it up till it does it?
I'm glad you asked that. :-)
We did just that last weekend. Put the rear end up on 4 jackstands, then cautiously ran it up through the gears. I was "driving" (and praying not to go flying through the wall into the house) while a friend was outside, down on the floor watching and listening.
I ran the car all the way up to an indicated 70mph. Could not get it to make the noise.
It occurred to me later that the noise starts after the car has been driven about 5 miles, so I guess something has to get warmed up before it will make the noise - and we didn't do that while the car was on jackstands.
Oy.
