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9.5" 14 bolt 6lug AXN gear oil?

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Old 06-26-2010, 06:21 PM
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Default 9.5" 14 bolt 6lug AXN gear oil?
What is the recommended gear oil for this rear end? I have been running Mobil 1 75W-90, should I be using a heavier weight? It also has a G80, I've been told to use friction modifier and not too... Who's right? lol
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Old 06-26-2010, 08:07 PM
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The G-80 doesn't require a friction modifier, just synthetic gear oil...the 10 bolt is 75w-90 and I believe that the 14 bolt is also...
Last edited by budhayes3; 06-28-2010 at 11:25 AM.
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Old 06-26-2010, 08:29 PM
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SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 12378261, in Canada 10953455) or equivalent meeting GM Specification 9986115. GL5 Rated.
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Old 06-26-2010, 08:31 PM
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Should be good to go then.. Thanks Guys
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Old 06-28-2010, 03:16 AM
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Originally Posted by budhayes3
The G-80 doesn't require a friction modifier, just synthetic gear oil...the 10 bolt is 5w-30 and I believe that the 14 bolt is also...


budhayes3, I will personally Buy what ever brand 5W-30 for you to put in your own rear end. All I ask is that you let us all know how long it last and post up the pictures.
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Old 06-28-2010, 11:27 AM
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Originally Posted by 1FastBrick


budhayes3, I will personally Buy what ever brand 5W-30 for you to put in your own rear end. All I ask is that you let us all know how long it last and post up the pictures.
LOL, I just went back and realized what I posted duh! Fixed it...
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Old 06-28-2010, 11:52 AM
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That's the thing w/. the internet. Ya gotta be careful on advice. Esp. if they don't edit it.
What is 6lug AXN?
Last edited by fastnblu; 06-28-2010 at 12:07 PM.
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