Help identifying my rear axel

[dwonzer]

I have a 1999 Expedition Eddie Bauer 4x4 and am trying to know the exact rear axel I have Can anyone tell me how to know exactly what size ring gear and ratio I have? I attached the picture of the door sticker. Thanks for the help.

 

[Hamfisted]

You have the H6 axle code. Which is a 9.75" 3.73 Limited Slip rear axle. Should use 75w-140 gear lube with an LSD additive in it.




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[studabaker]

That will also be on the axle diff cover. You might need to clean the cover to see it. It's raised number.