42RE - how much fluid? - JeepForum.com
 
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post #1 of 5 Old 04-04-2013, 01:09 PM Thread Starter
Adam86
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1998 ZJ 
 
Join Date: Dec 2012
Location: Birmingham
Posts: 62
42RE - how much fluid?

Apologies if this info is on the forum if so ive missed it.

From using Google ive read l need ATF+4 fluid? I've found the filter but im getting conflicting information about how much fluid ill need? I assume when draining the transmission it will also drain the transfer case?

Anything l need to be aware of when doing the change? Or tips?

Cheers

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post #2 of 5 Old 04-04-2013, 01:43 PM
Mickey_D
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Join Date: Aug 2008
Location: 40 3'42.36"N 112 2'16.73"W
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Just a fluid and filter change you'll only drain out 2 quarts. Now if you were going to run fresh fluid through the torque converter and valve body it's a lot more (6 or 8 quarts) but 90% of us don't have the equipment to do that.

Once again just dropping the pan and filter is two quarts.

And no, it won't drain the transfer case. That has a big bolt on the bottom to drain it. Word to the wise if you go to change the xfer case fluid make sure you get the filler plug out FIRST BEFORE you drain it. It seriously sucks to drain something THEN find out you can't fill it back up because of a stuck bolt...

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post #3 of 5 Old 04-04-2013, 02:06 PM Thread Starter
Adam86
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Join Date: Dec 2012
Location: Birmingham
Posts: 62
Thanks for the advice its appreciated!

My trans and t-case are overdue a service by 20k! According to my service manual. Is it important that l get a full fluid change done? If l can get away with just the fluid and filter change ill do that rather than pay someone with the equipment.

How much fluid will the transfer case need? Thanks for the tip!
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post #4 of 5 Old 04-04-2013, 10:25 PM
AmishFury
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Join Date: Oct 2011
Location: Evansville
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transfer case is less than 2qts if it's the 242... IIRC 231 is around the same and i wouldn't be shocked to hear the 249 is too
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post #5 of 5 Old 04-04-2013, 11:09 PM
jnicewan
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1995 ZJ 
 
Join Date: Dec 2010
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Yep just a couple quartsif dropping the pan/filter, maybe up to 4 depending on how long you let it drip. Just put about 1.5qts in it, run it through the gears and check in Neutral before adding more if needed at all. FYI a dry 42RE takes between 8.5-11 quarts. All 3 t-cases take less than 2 quarts.

NP 231 takes 1.1 qts
NP 242 takes 1.5 qts
NP 249 takes 1.25 qts
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