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Unread 05-22-2015, 06:39 PM   #1
steven81
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Transfer Case Fluid

I am planning on changing the fluid in the transfer case. I have a 2001 TJ sport. I have done some research and a lot of people say to use ATF +4. My manual says to use Dexron III or ATF +3 Type 7176. I am just wondering what all of you use and also just curious if I would do any damage putting in ATF +4?

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Unread 05-22-2015, 07:18 PM   #2
Shark_13
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ATF+4 is compatible with parts spec'd for +3, you'll be fine using +4.
http://www.allpar.com/mopar/transmissions/fluids.html
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Unread 05-22-2015, 07:37 PM   #3
MDTJ
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As I understand it, all ATF is backwards compatible. So you can always use a higher number than listed.
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Unread 05-22-2015, 08:09 PM   #4
26679cj5
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I think atf+3 was semi-synthetic and +4 is full synthetic?
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Unread 05-23-2015, 12:44 AM   #5
Jerry Bransford
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Unlike an automatic transmission, the transfer case is not fussy about the exact type of ATF it runs on. Any of those choices are fine, ATF+4 would be a great choice.
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Unread 05-23-2015, 09:25 AM   #6
steven81
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Thanks for all the help. I think I am just gonna go with the ATF +4 even though its a little more expensive. Not sure it has ever been changed before so I want to change it before I go hit the trails this summer.
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Unread 05-23-2015, 01:29 PM   #7
MDTJ
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Make sure to pull the fill plug first, before you drain it. If it won't come out, you'll want to know that before you drain the fluid.
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Unread Yesterday, 10:55 PM   #8
steven81
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Next problem. Fill Plug will not budge. I have hit it with heat, some PB blaster and its not budging. Any ideas. This is what my bolts look like.
img_1652.jpg  
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Unread Yesterday, 10:59 PM   #9
BYuen
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Get a good breaker bar or impact on it. Make sure you use the right sized Allen bit or you will strip the plugs easily.
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