What type of gear oil to use in the rear end? - Honda ATV Forum
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post #1 of 7 (permalink) Old 04-09-2011, 10:18 PM Thread Starter
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What type of gear oil to use in the rear end?

I am planning on changing the final drive gear oil in my 86 250 Fourtrax... I notice the Service manual just says SAE 80 weight gear oil.... Should I use anything fancy or just go to walmart and get some supertech SAE 80 weight plain old gear oil?


Are there any specifications I should look for?



Thanks,
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post #2 of 7 (permalink) Old 04-09-2011, 10:24 PM
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Just use SAE 80 hypoid gear oil, any brand.

Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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post #3 of 7 (permalink) Old 04-09-2011, 10:25 PM
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look to see if it says hypoid gear oil, if so youll need hypoid gear oil.

2011 Rancher 420 FPM
AMS Swamp fox tires
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Superwinch Terra 25
Moose rear bumper
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post #4 of 7 (permalink) Old 04-09-2011, 10:35 PM Thread Starter
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Is Hypoid different than regular 80W? Where does it typically show if it is Hypoid or not?
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post #5 of 7 (permalink) Old 04-09-2011, 10:38 PM
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it should say it right on the diff near fill hole somewhere, im not 100% sure of the difference in reg oil and hypoid oil but i thionk it has something to do with the oil molecule shearing effect in the hypoid cut gears

2011 Rancher 420 FPM
AMS Swamp fox tires
Stearns rear rack bag
Superwinch Terra 25
Moose rear bumper
Fuse powersports trailer hitch
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post #6 of 7 (permalink) Old 04-09-2011, 10:42 PM
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Hypoid gear oil is for extreme pressure applications such as ring and pinion gears. It will say hypoid on the bottle.

All diffs use hypoid gear oil because of the ring and pinion gears.

Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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post #7 of 7 (permalink) Old 04-09-2011, 10:47 PM
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yeah its definatly a high pressure metal on meatl area and you need correct lubrication in it or it will eventually wear out completely

2011 Rancher 420 FPM
AMS Swamp fox tires
Stearns rear rack bag
Superwinch Terra 25
Moose rear bumper
Fuse powersports trailer hitch
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