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which transfer case oil do you use?

128007 7
in my 2001 tahoe lt? it gives me 2 options in the chiltons manual.

-gm auto trak 2 transfer case fluid if i have the new venture 236 or 246 np8 case
-or dexron 3 atf for all others.

how do i know which transfer case i have? also if i do use dexron 3 atf. didn't they stop making it and i read dexron 6 isn't recommended to be used in replacement.
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Discussion Starter · #3 ·
this is the first 4wd i've owned. yeah it has auto 4wd, 4wd hi, and 4wd low buttons. i'll have to crawl under and look to see if the case is labeled.
 

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Discussion Starter · #7 ·
i got underneath there and the sticker said use AutoTracII, so i guess off to the stealership. thanks guys.
 
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