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Transfer Case Fluid Info

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Old Oct 20, 2012 | 04:42 PM
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HD RULES's Avatar
HD RULES
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Transfer Case Fluid Info

The truck has 66k miles and winter is coming. Figured it's time to do the under truck work like the transfer case and axles since I'm pretty sure they've never been done before. Looked in the owners manual and see it's 2 quarts (64ozs) to fill the case. Run the truck around to warm it up and get home to do the job. Pop the top plug off and expected the typical small dribble since everyone x case I've done, they fill it to the top of the fill plug. With this one I get a lot more than a dribble. Get the bottom plug off, it really pours out and I think, that looks like a lot more than two quarts. Measure out what's in the pan and it's 3+ quarts. Actually 105 ozs. WTF?!?

I go and ask my neighbor (previous owner) and he never had that stuff serviced. I bought the truck from him with less that 28k miles. So what do you think, put it the way it was or go by the manual??
 
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Old Oct 20, 2012 | 06:11 PM
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Maybe from the trans?
 
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Old Oct 21, 2012 | 01:43 PM
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I cant tell you where the extra came from. But I can tell you I just changed mine and got 2.25 quarts out of mine and it took 2.25 quarts to fill it as well.
 
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Old Oct 21, 2012 | 05:35 PM
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The neighbor had it sitting for long spells so I'm kinda figuring that it either leaked into the X case during those long sits prior to the rebuild or the rear main seal is leaking into it now. I'll check it in a few weeks to see if it goes above the fill plug.
 
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Old Oct 21, 2012 | 05:50 PM
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As far as I know there is no possible way for the transmission fluid to work it's way into the transfer case. It'll be interesting to see what you find in a couple of weeks.
 
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