ck535

I bought a new 2003 expedition. It developed a vibration and leak at the differential seals where the axles enter the differential which resulted in replacement of the seals both sides and ring gear/ pinion gear @15k. At 30k the same problem developed and again the seals ring gear/pinion gear were replaced again. I questioned this and asked for an extended warranty which no one would help with. I was told that this is an occaisional problem and that the first repair did not work because they redesigned the seals and that the 2nd repair had the new type seals. Each of these repairs cost in the $800 range under warranty so I am told this would be much more expensive as a consumer, the dealer provided a rental car but they had the car for five days each time. I just left the car off at the dealers with 32k for replacement of the newly redesigned and installed rear differential seals that are again leaking. I was told that Ford will replace gears if after the seal is replaced my car is noisier than others with similiar mileage.
I also get an intemittent noise from the front of the car 30-40mph and 60-70mph that sounds like the car needsto shift ot a highger gear. I cannot always reproduce this but read someon else that it occurs only when cold.