Fluid for transfer case

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Fluid for transfer case

Post by Ty on Mon Aug 10, 2015 4:58 am

I've developed a pretty severe leak from the front seal on my transfer case. In prepping to replace it I was doing a little research and am finding different sources some saying to use gear oil and some saying ATF. What fluid should I run??

I did put a new/used case in last fall and I do remember topping it off with ATF which it already had in it. I just want to use the right oil if I have to replace it any how.

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Re: Fluid for transfer case

Post by Kevin on Mon Aug 10, 2015 5:38 am

You need this, yo. 75w90.

https://drive.google.com/file/d/0B-WDEGabC63wNF9ZMGtWSVgyY0E/view?usp=sharing

I wonder if the ATF is why it's leaking.  You might wanna reseal the whole case, and check the bearings while you're at it.

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Re: Fluid for transfer case

Post by dutchman on Mon Aug 10, 2015 8:12 am

I'm with Kevin on this one. I used 75w90 gear oil when I did the t-case swap on my 3rd gen.

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