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Old 03-07-2010, 06:27 PM
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Oil for differentials Dana 30/35

Hi,
I want to change oil in my differentials. Can I use 75w-140 oil in Dana 30 and 35 without vari-lok? How do I know if my diffs are limited slip?
Thanks!
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Old 03-07-2010, 06:40 PM
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Re: Oil for differentials Dana 30/35

Just use Mobil-1 Synthetic.
http://www.mobiloil.com/USA-English/...75W-140LS.aspx
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Old 03-08-2010, 04:46 PM
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Re: Oil for differentials Dana 30/35

just to throw this out there.. but if you off road a lot like i do, then buying a good quality oil for the diffs isn't practical as it is *usually* emptied out after every trip and replaced.. i just buy w/e is cheapest and thickest and am on my way.. but if you don't then yes on the Mobil 1.. and it never hurts to throw in an additive even if you don't have limited slip... it quiets any chatter down you may have..
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Old 03-08-2010, 05:08 PM
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Re: Oil for differentials Dana 30/35

I use this http://www.royalpurple.com/gear-oil.html and It's amazing. I could tell a difference the first day I put it in, and I haven't went back.
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Old 03-10-2010, 07:13 AM
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Re: Oil for differentials Dana 30/35

What is the maintenance interval for the diff's and t-case, and tranny for that matter? What rears and t-case are in the 04 WJ's?
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Old 03-10-2010, 02:39 PM
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Re: Oil for differentials Dana 30/35

Quote:
I use this http://www.royalpurple.com/gear-oil.html and It's amazing. I could tell a difference the first day I put it in, and I haven't went back.

I 2nd That^^^^^^^^ royal purple is some good stuff.


check this site out tells you a loota good info about things like service interveals


clicky its wjjeeps.com



joe R
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Old 03-10-2010, 06:52 PM
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Re: Oil for differentials Dana 30/35

Thanks for the info. What fluid can be used in the tcase besides the Mopar fluid?
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Old 03-10-2010, 08:29 PM
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Re: Oil for differentials Dana 30/35

I belave you should only use the NV247 fluid from the dealer. Im not sure if there is something out there that you can sub in. I would just buy a few quarts and do a flush. Good luck


joe
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