A week or two ago I made a post regarding differential whine in late model Explorers. My '02 Explorer XLT has had a whine since new and it occurred around 60 MPH. From what I've read on various forums, there didn't seem to be a solution to the problem. Many folks reported that the whining noise didn't go away or just occurred at a different speed. Some reported new noises or problems after a repair attempt.
Well, the factory warranty on my '02 expires early next month, so I figured I should at least mention the problem to my dealer. They test drove the vehicle and confirmed my complaint. Next, they ordered a bunch of parts for the differential which included the ring and pinion gears. Viola! I picked up my Explorer last evening and the differential is silent!
Dave '02 Explorer XLT standard V6, 4 x 2 tow package, 3.73LS axle