svt13 Posted December 22, 2012 Report Share Posted December 22, 2012 So I found out that our axles all have a hole in it at the top on the left side where a breather bolt is suppose to be installed. When the axles are assembled and shipped to ford that manufactuer sticks a bolt in there that pressurizes the axle and keep fluids from pouring out if it were to be flipped over or moved etc..... Now when ford does their inspection they are suppose to remove this bolt and install a breather. Unless you have the track pack with the differential cooler then that requires according to Van a pressurized axle. My car has the performance pack but not the trackpack and we found my bolt was not replaced with a breather. This caused built up pressure which caused me to start to get a very slight oil leak out of my rear end. Obviously if the problem was not caught this soon the pressure would have built up till eventually something blew apart. So my warning to all non track pack owners is check your axles on the left side and make sure there is a breather in there and not just bolt. A breather if some of you don't know basically is a bolt with a very small hole all the way through it to allow air out. Quote Link to comment Share on other sites More sharing options...
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