In July, I had the transfer case replaced in the Explorer. Over the last two weeks, the front-end has started to make more and more noise. I took the car in on Friday to have the noise diagnosed. It turns out that the wheel bearings on both of the front wheels are failing. I had to have the bearings and the supporting housings replaced. We picked it up this morning.
The Explorer has almost 148,000 miles on it. I was thinking that I would try to get two more years out of it, but now I am starting to rethink that strategy. In particular, if the automatic transmission fails (something that they expressed concern about when they replaced the transfer case), I am not sure that I am willing to make that investment.