what is rear end size of 04 expedition how would know

Question:
what is rear end size of 04 expedition how would know


Answered By Justin Cupler, Contributing Writer:
The standard axle ratio on the 2004 Expedition is 3.73-to-1, but to see if you have one of the optional ones, you need to look at the tag on the rear end and take the numbers on the tag to a dealer for decoding. Sometimes an online search of the numbers can reveal the size too.
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