One problem related to differential unit has been reported for the 2004 Lincoln LS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Lincoln LS based on all problems reported for the 2004 LS.
I have a 2005 Ford expedition & 2004 Lincoln Ls I just replaced the transmission for the expedition @ 53,000 miles it quit on me on the freeway almost causing and accident and now a month later same thing happened with the Lincoln Ls I think some one has to get hard on Ford Lincoln same thing it is not possible that two cars bought @ over $43,000 dollars each are piece of !@#$% cars I would understand if I had bought an ikea or Hyundai I knew what I was getting into, some one has to make Ford and Lincoln fix these problems with there product maybe that's why they only offer a 27,000 mile warranty and still had my differential changed on the expedition 6 months after purchase with only 3500 miles on the expedition.