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Front Differential Fluid
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=49047
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Author:  67Customs [ Fri Jan 08, 2010 12:35 pm ]
Post subject:  Front Differential Fluid

Quick question.

MY FSM says the front diff requires 80W-90 while the owners manual says it requires 75W-140.

Which is correct?

2005 Limited with 3.7, Auto and Selec-Trac (if any of that makes a difference).

Author:  JeepinJarhead03 [ Fri Jan 08, 2010 1:35 pm ]
Post subject:  Re: Front Differential Fluid

i use 75-140 in the front and 90 purple in the rear

Author:  67Customs [ Fri Jan 08, 2010 5:07 pm ]
Post subject:  Re: Front Differential Fluid

I currently run 75W-140 in both the front and the rear since that is what the manual recommends if you tow, which I do.

I'm just curious as to why the discrepetency between the FSM and owners manual. Especially one that different.

Another question is what was the factory fill in those two?

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