Join Date: Nov 2008
Location: Madison, WI
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Check the axle code on the door jamb sticker.
C5=4.10 limited slip
C9=3.55 limited slip
If it's stock, it'll have the Dana 50 front axle. No drain, no diff cover, the axle beam itself acts as the diff cover. So you either get to tear it down, or siphon out through the fill hole, in order to change the dope. Synthetic gear oil is spendy, but your diffs will like it.
Edit - it being an F250, it's unlikely to have the PTO t-case with the second fill plug, so you can ignore all that.
Last edited by madpogue; 02-05-2014 at 01:07 PM.