I've got the same proublem with mine. I replaced the rear diff bushing and it helped but, didn't solve it. For the most part the noise just went away for awhile but, is now back since I replaced the rear end with an LSD unit. I'm begining to think mine may be a worn out CV on the outer side of the passnger side axle. I checked at work on a replcement but, the guy that rebuilds them said he had no idea when he would be able to send one so I cancelled my order. I checked with a local drivetrain shop and they quoted my about 70 dollars if they could get everything.