How to change differential fluid

I don't see it as a problem, I have to source oil with zinc for my TR6 and it is also a straight six tractor motor they use in them...something to do with the flat tappet design of the engine.
 
Trident72 said:
Good stuff thank you. Factory service manual might be of use[emoji12] but I have all of you fine people! Good video. Definitely helpful thank you


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Great video! This will be my next task. I just bought a 2006 TJ. I'm going to do front and rear diff's. The video used rtv. Is lube locker gasket a better alternative?

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I don't know if this is frowned upon but I'm going to use this gray gasket material from A zone, and make a diff gasket, I clean both surfaces with lacquer thinner, torque to specs..I'm trying this method cuz the closest thing to me is a lake and i have to be resourceful.. :)
 
Anyone know if its ok to unbolt the lowest 5 bolts on the diff cover to install a diff skid plate, then reinstall the bolts? or is that sort of thing not advised and will mess up your gasket/seal potentially?

I know the bolts are best tightened in a special order so thats the only reason I ask...just curious if anyone has any thoughts on this.
 
EJD said:
Anyone know if its ok to unbolt the lowest 5 bolts on the diff cover to install a diff skid plate, then reinstall the bolts? or is that sort of thing not advised and will mess up your gasket/seal potentially?

I know the bolts are best tightened in a special order so thats the only reason I ask...just curious if anyone has any thoughts on this.
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If the gasket was done right it wouldn’t leak. I certainly wouldn’t try it without have gear oil and rtv on hand.
 
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EJD said:
Anyone know if its ok to unbolt the lowest 5 bolts on the diff cover to install a diff skid plate, then reinstall the bolts? or is that sort of thing not advised and will mess up your gasket/seal potentially?

I know the bolts are best tightened in a special order so thats the only reason I ask...just curious if anyone has any thoughts on this.
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It’s sbsolutely fine. Nothing will leak. Just be careful not to strip them out when reinstalling. They are prone to strip. I think it’s 20ft/lbs, but just hand tight with a normal wrench. No giving it the gusto. Yes, I have installed a Warn differential skid
 
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This looks easy.

https://www.amsoil.com/shop/by-product/gear-lube/severe-gear-75w-90/
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An earlier post said they couldn’t find a gasket for the Dana 30. FelPro makes one. P/N RDS 55019. I’ve had one on mine for a couple years now. I ordered through Advance Auto Parts online.
 
Hey guy's, I found this thread and I have a question on if I have to put the limited slip oil ( I think that is what it is called, LOL been a while since I read on it.) in my differentials or not. I read some need it and some don't. I just don't know if mine does or not. LOL I added pics of the stuff I actually bought for my Liberty and never used it, so I am going to use it on the TJ. I have stock differentials for a 99.

ROI53nYqQCafxtQiJyjkOQ.jpg


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NOTE: AMSOIL synthetic gear lubes do not require this additive. However, not all differentials respond the same and the addition of AMSOIL Slip Lock will eliminate chatter in mechanically sound differentials.
 
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