Urgent: Question about NP231 Please Help! - JeepForum.com

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post #1 of 16 Old 04-27-2010, 04:58 PM Thread Starter
moonpie312
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Urgent: Question about NP231 Please Help!

Okay guys, I know this may seem like a stupid question, but I am making a very long trip tomorrow and need to know for sure. I was changing all the fluids out and got down to the transfer case. read that it takes about 2.5 quarts of ATF fluid. Well I drained it, and I can only manage to get about 1.5 in it. Whats the deal??? I dont want to be 300 or so miles from home tomorrow and be having issues with this.. Oh and its a 89 with a 4.2L, BA 10/5 tranny, and of course, NP231 transfer case. Please Help. I'm already behind on everything and havent even packed yet.

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post #2 of 16 Old 04-27-2010, 05:00 PM
jaycal3
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I am assuming you are using the top fill and not trying to fill it back up through the lower drain plug?

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post #3 of 16 Old 04-27-2010, 05:01 PM Thread Starter
moonpie312
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Lol yes, and I did let it drain for a good while, and its on level ground.
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post #4 of 16 Old 04-27-2010, 05:03 PM
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No disrespect meant - I have done some stupid stuff!! Usually I have to do things twice!

I am stumped - I did mine recently and it was a good 2-2.5 q...

93 YJ, 6 cyl,3.5" BDS,1" Prothane BL,1/2" booms, 33" Mickey Thompson MTZ on MT Beadlocks.

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post #5 of 16 Old 04-27-2010, 05:04 PM Thread Starter
moonpie312
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None taken- and I know its really weird that it will only take that much. I'm worried I'll be halfway there and burn something up...
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post #6 of 16 Old 04-27-2010, 05:07 PM
Unlimitedlou
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Put the plug back in and drive it. Come back and check it. If you can still get oil on your finger when you check it, you will be fine. I can't remember how much it takes, but if it is full, it is full.

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post #7 of 16 Old 04-27-2010, 05:10 PM
jaycal3
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Hmmm... well according to MeanMax (took the pic from a write-up he did), and as the adage goes, we should always listen to MeanMax, it takes 2.2 q...
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93 YJ, 6 cyl,3.5" BDS,1" Prothane BL,1/2" booms, 33" Mickey Thompson MTZ on MT Beadlocks.

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post #8 of 16 Old 04-27-2010, 05:14 PM Thread Starter
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Well according to that picture I did everything right except I can only get 1.5 in it..
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post #9 of 16 Old 04-27-2010, 05:15 PM
DaveinHouston
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Fill it till it begins to run out of the fill plug hole and you're good to go.

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post #10 of 16 Old 04-27-2010, 05:16 PM Thread Starter
moonpie312
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OH!! wait a minute!!! in the picture it says 2.2 pints...? So I guess It really is full?
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post #11 of 16 Old 04-27-2010, 05:17 PM
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Quote:
Originally Posted by moonpie312 View Post
OH!! wait a minute!!! in the picture it says 2.2 pints...? So I guess It really is full?
Ahahahah!!! Nice catch... I wonder why I have to do things twice!!!!

93 YJ, 6 cyl,3.5" BDS,1" Prothane BL,1/2" booms, 33" Mickey Thompson MTZ on MT Beadlocks.

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post #12 of 16 Old 04-27-2010, 05:19 PM Thread Starter
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Ahahaha. Boy do I feel like a moron. But thank you guys for the quick help! I feel a lot better now knowing its okay, but still like a moron.. Lol
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post #13 of 16 Old 04-27-2010, 05:38 PM
provinT13
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Yes it's right around 1.25 quarts of ATF fluid to fill the np-231 t-case

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post #14 of 16 Old 04-27-2010, 05:42 PM
DaveinHouston
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According to this http://www.jeepforum.com/forum/f9/fa...cities-489932/ it should only hold 1.25 qts.

- 2003 Rubicon - 4" Lift, 35" KM2s, 5.13 gears, winch
- 1968 CJ5 - Dauntless V6, T-86, Dana 18, D27 & D44

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post #15 of 16 Old 04-27-2010, 05:47 PM
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Quote:
Originally Posted by moonpie312 View Post
Ahahaha. Boy do I feel like a moron. But thank you guys for the quick help! I feel a lot better now knowing its okay, but still like a moron.. Lol
Honestly, the first time I read that, I made the same mistake!

First Jeep was an 1989 YJ, 6 cylinder 4.2L , 258. Nuttered and TeamRushed, Weber 38 DGES, Now, I'm venturing into the world of Grand Cherokees
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