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How to Change Fluid in your Transfer Case

Drain and refill transfer case fluid
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Re: How to Change Fluid in your Transfer Case

Postby EKinMN [OP] » Feb 24 2017, 10:38pm

Post up some pics of the magnet, etc! love to compare.
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Re: How to Change Fluid in your Transfer Case

Postby robeward » Jul 10 2017, 3:16am

Got the record on this one too. 214000 miles and got it's first oil change. My plugs are aluminum and no magnets. Guess my metal shavings just get ground to a pulp. Couldn't quite get the documented 2 quarts in before it started running out the fill hole. Hope it's good for another 200k. 2006 silverado
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Re: How to Change Fluid in your Transfer Case

Postby Jbrandt » Oct 14 2017, 3:17am

Nice write up. I did mine today and it ended up only taking 1 and 1/2 quart or a little less before it was coming out the fill hole. I even let it weep for a Little before I put the plug in to make sure it really was full. Has anyone else not been able to get the 1.6 quarts in?
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Re: How to Change Fluid in your Transfer Case

Postby NCSU1500 » Feb 20 2018, 10:35pm

Is there a writeup on changing the front differential fluid? I've tried searching and didn't see a how to. Appreciate the help
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Re: How to Change Fluid in your Transfer Case

Postby esox07 » Feb 20 2018, 10:58pm

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Re: How to Change Fluid in your Transfer Case

Postby NCSU1500 » Feb 20 2018, 11:18pm

Thank you! Going to tackle them all this weekend while it’s in the 70s
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Re: How to Change Fluid in your Transfer Case

Postby cooltc2004 » Aug 13 2018, 6:54pm

It has been asked a few times with no definitive answer. Sealant on the fill / drain threads or no?

What has everyone done that completed this?
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Re: How to Change Fluid in your Transfer Case

Postby esox07 » Aug 13 2018, 6:55pm

I didn't use any sealant when I did mine.
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Re: How to Change Fluid in your Transfer Case

Postby CT2500HD » Aug 13 2018, 8:43pm

cooltc2004 wrote:It has been asked a few times with no definitive answer. Sealant on the fill / drain threads or no?

What has everyone done that completed this?


Not needed. If it feels loose of you develop a drip afterwards, wrap with threads with Teflon tape or a little pipe dope.
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Re: How to Change Fluid in your Transfer Case

Postby clegg » Mar 05 2020, 2:56am

I just changed the fluid on my Sierra. 139000 miles.. The fluid didn't look too bad, the drain bolt magnet had the typical metallic hair on it .Good for another 140k.
I used Teflon tape on the bolts. Be careful tightening these, they are tapered to seal. Just snug them.
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