For the last couple of months I have had an intermittent sound coming from the general area of the rear of the car at highway speeds(sometimes it lasts for a few seconds other times for half an hour). It is a very strange sound, almost like something is tied around the driveshaft and is slapping the bottom of the car (I have looked and can't find anything). The sound is rythmic (tah, tah, tah, tah...) at a rate of 3-5 beats to second. I am beginning to think it may be something inside the differential, I don't know what it could be there though, does anyone have any thoughts?
Ike
p.s. I did have an Aluminum driveshaft installed on the car a couple of months before all this started.
Ike
p.s. I did have an Aluminum driveshaft installed on the car a couple of months before all this started.