What kind of gear oil for front & rear differential? - Honda Foreman Forums : Rubicon, Rincon, Rancher and Recon Forum
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post #1 of 5 (permalink) Old 09-01-2008, 12:48 PM Thread Starter
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What kind of gear oil for front & rear differential?

I need to change my front and rear differential oil from where I sunk my foreman. What exactly brand/weight and how much do I need to do this? THANKS!!!
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post #2 of 5 (permalink) Old 09-01-2008, 01:08 PM
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i use 80w 90 gear oil. and i havent had any problems. some people use 85w 90. idk what the difference is

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post #3 of 5 (permalink) Old 09-01-2008, 06:35 PM
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post #4 of 5 (permalink) Old 09-02-2008, 05:18 PM
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I use 75W90 synthetic hypoid gear oil (actually quite unlikely you would find an 80W90 or 75W90 that is not a hypoid oil, if it is for the rear axle of any pickup truck, it is a hypoid oil).

You may also find after changing your front axle gear oil that you have a creaking noise when you take corners if you have the Honda limted slip front axle as I do. To stop this, just add a very little bit of limited slip additive which you can purchase from any GM or Dodge dealer. In a GM limited slip axle, you use a small 8oz bottle for approx. 2.5 quarts or liters of axle fluid, and I think the Honda front end only holds about 300ml or a third of a quart. So you would only need an ounce of additive.

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post #5 of 5 (permalink) Old 09-02-2008, 05:28 PM
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Some synthetic gear oils already have the friction modifier in them.Look on the bottle,it should say.

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