One problem related to differential unit has been reported for the 2001 Ford Explorer Sport. The most recently reported issues are listed below.
01 Ford explorer automatic trans. I have a problem with my rear end like many other people do. It whines very loud and only has 80k miles on it. My mechanic said that it could lock up any minute while driving. I cannot afford the repair as I am a fulltime college student. There are thousands of people with the same problem Ford needs to be addressed before anybody dies.