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Unread 10-28-2012, 08:45 PM   #1
jeepyjLeD
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1993 YJ Wrangler 
 
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Hey gus. I have a jeep yj with a ford 8.8 rear and a Dana 30 front. Bother are regeared to 4.88. I'm
Wondering what type of oil I should use in each one if I'm doing 75 on road 25% offroad

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Unread 10-28-2012, 08:48 PM   #2
dillonjm
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Standard gear oil.

Add LS additive as required (if your 8.8 has limited slip).

Its a waste of money to run high dollar oils in a differential. Especially if your going to change it frequently due to wheeling in wet conditions. My 2 cents.
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Unread 10-28-2012, 08:53 PM   #3
jeepyjLeD
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So like 75 w - 140?
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Unread 10-28-2012, 09:06 PM   #4
CaptLeeB
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I run 80w-90. There will be different answers and different reasons. Just make sure you have gear oil in it. Like Dillonjm said if you have LS get an additive.
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Unread 10-28-2012, 09:08 PM   #5
jeepyjLeD
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No limited slip. Just open open for now
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Unread 10-28-2012, 11:17 PM   #6
Anticanman
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Then any 90wt oil will work. That 25% offroad will catch up with you and you'll change it often enough searching for water. I suggest a lubelocker front and rear. I bought my front but stuck with rtv for about six months and after cleaning up the mess out back I got another lubelocker for the 8.8. Best oil change investment you'll ever buy.
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Unread 10-29-2012, 07:16 PM   #7
jeepyjLeD
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I have a lube looking in the rear already. Definetly Ghana get one for the front
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Unread 10-29-2012, 10:03 PM   #8
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Good on you, mate!!
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Unread 10-30-2012, 10:14 PM   #9
jeepyjLeD
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Thanks for the help guys
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Unread 11-05-2012, 05:30 PM   #10
jeepyjLeD
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Ended up using Lucas 85w-140
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