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  • April 28, 2024, 01:07:53 AM

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Author Topic: rear diff oil?  (Read 5091 times)

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Offline EAGLER

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rear diff oil?
« on: January 04, 2012, 12:10:20 PM »
hi guys i just repaired my rear end and i would like to know what is the best viscosity for my axle. i`m thinking on the 90w .btw i`m running on 3.55 gears . thanks in advance
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Offline IowaEagle

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Re: rear diff oil?
« Reply #1 on: January 04, 2012, 01:35:56 PM »
Gear oil is just fine for the differentials.
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Offline EAGLER

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Re: rear diff oil?
« Reply #2 on: January 04, 2012, 02:09:11 PM »
thanks doug have a nice day :hello2:
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Offline Jurjen

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Re: rear diff oil?
« Reply #3 on: January 04, 2012, 03:11:57 PM »
The specified oil is 75W90.
You have to remove the covers to get the old oil out.
You will need new gaskets for the Dana 30 and 35.
They are the same as on the XJ Cherokee.
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Offline EAGLER

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Re: rear diff oil?
« Reply #4 on: January 04, 2012, 03:51:21 PM »
thanks jurjen i already have the cover off . my axle is a dana 30 i`ll go with the 90w and new gasket. thanks for the reply and have a nice day greetings fro mexico
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Offline carnuck

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Re: rear diff oil?
« Reply #5 on: January 06, 2012, 12:41:32 PM »
Just be sure the rear has no posi setup. It will take posi additive then. 80/90W is better than straight 90 and 75W90 is synthetic or synthetic blend.
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Offline EAGLER

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Re: rear diff oil?
« Reply #6 on: January 06, 2012, 07:53:17 PM »
thanks. forgot to say that the diff belongs to my 1980 amx instead of the eagle but thanks anyway for the advice
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Offline carnuck

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Re: rear diff oil?
« Reply #7 on: January 07, 2012, 10:22:07 AM »
That could be a Model 20 then.
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Offline EAGLER

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Re: rear diff oil?
« Reply #8 on: January 07, 2012, 02:13:56 PM »
actually it is a dana 30. will post some pics after finish the job
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Offline carnuck

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Re: rear diff oil?
« Reply #9 on: January 08, 2012, 10:11:20 PM »
What did the D30 rear come from? Did you mean Model 15 aka Dana 35?
AMC/Jeep gauges are for amusement only. Any correlation between them and reality is purely coincidental!

Offline bigdog56e

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Re: rear diff oil?
« Reply #10 on: January 29, 2012, 10:13:03 AM »
Multi weight is better, as it lubes better when staring out cold.
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Offline maximus7001

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Re: rear diff oil?
« Reply #11 on: March 25, 2012, 02:50:05 AM »
Just checking as to if it is a Dana 30 or not.
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