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Transfer case fluid change question.

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Old Mar 28, 2010 | 11:57 AM
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Transfer case fluid change question.

I drained the transfer case and started to fill it up. I put in 2 full quarts but it never came out of the fill hole. Am I good or do I need to buy some more ATF and put it in?

Thanks for the input.
 
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Old Mar 28, 2010 | 12:32 PM
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I'm wondering this too. I think 2 quarts is probably good if you didn't spill any, but not positive.
 
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Old Mar 28, 2010 | 02:25 PM
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I added more fluid and filled it to the fill bolt - took apprx. an extra quart. I have over 30k miles that way and have had no problems.
 
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Old Mar 28, 2010 | 02:27 PM
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Originally Posted by bismic
I added more fluid and filled it to the fill bolt - took apprx. an extra quart. I have over 30k miles that way and have had no problems.
So it took 3 quarts instead of the recomend 2?
 
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Old Mar 28, 2010 | 02:32 PM
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Originally Posted by 02GrayPowerStroke
So it took 3 quarts instead of the recomend 2?
I put 3 quarts in mine.
 
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Old Mar 28, 2010 | 05:51 PM
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Originally Posted by bismic
I put 3 quarts in mine.
Noted, so do you think I will be ok with 2 quarts as prescribed in the manual? I have no problem with adding a third quart if you think it needs it. I do respect your input.
 
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Old Mar 28, 2010 | 06:24 PM
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Hey,
Just chimming in, apologize for the tangent. How often should the transfer case & rear end (front & rear -4x4) fluid be changed on the 6.0?

Thanks any input is appreciated.

Ford F250 Fx4, 124k miles, diesel site coolant filter, ARP studs, 4" Silverline TB
 
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Old Mar 28, 2010 | 06:35 PM
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Originally Posted by Jayybird
Hey,
Just chimming in, apologize for the tangent. How often should the transfer case & rear end (front & rear -4x4) fluid be changed on the 6.0?

Thanks any input is appreciated.

Ford F250 Fx4, 124k miles, diesel site coolant filter, ARP studs, 4" Silverline TB
https://www.ford-trucks.com/forums/3...d-in-tech.html


This may help.
 
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Old Mar 28, 2010 | 07:11 PM
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What a coincedence...I just did this today. The old stuff came out like water...very thin. I used Mobil1 ATF Syn...2.2 qts...did the job. Not exactly 2 and 1/2 qt...but close. I think you're fine. You can always top it off later when you pick up another quart. Same stuff I use in my Power Steering.
 
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Old Mar 28, 2010 | 07:14 PM
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I recently changed mine, the old oil came out black........ But i put the recommend 2 quarts in and have put about 2k miles on the truck since i've changed it and had no problems.
 
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Old Apr 7, 2010 | 02:24 PM
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So what fluid did you use? I ask because the owners manual states to use MERCON, so I went to the dealer and bought 2 qts. told him I needed txfr case fluid and he came back with 2 qts. Took to my shop and drained the old stuff, put in the new and as setting the last quart on the ground noticed it was MERCON V! So I decided to read the bottle and it states specifically not to use in transfer cases! WTF? Called the parts counter and they said that's all we have, well my next question is "what are you guys putting in transfer cases?" He called me back after an hour and said he had the guys in the back look it up and found that MERCON V has replaced MERCON, I told him "yeah, I found that too" but why does it say to not use it on the bottle? Long story- short.......they don't have a clue! I asked if there is a tsb or something in writing from Ford that states it is o.k. to put the MERCON V in the transfer case.......he said no. Again....WTF?
 
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Old Apr 7, 2010 | 02:52 PM
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Mercon V replaces Mercon. Pretty much everyone uses a Mercon V or synthetic Mercon V for the transfer case without any problems.
 
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Old Apr 7, 2010 | 03:10 PM
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Just a note. 2 qts does not bring the level to the "full" line. It takes almost 3q ts to get it there.
 
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Old Apr 7, 2010 | 03:33 PM
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I put 2 in and it needed a little more.
 
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Old Apr 7, 2010 | 07:42 PM
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That's exactly my point.....MERCON V replaces MERCON but.........states right on the MERCON V "DO NOT USE IN TRANSFER CASE"......?????
 
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