Differential Fluid - Chevy Nova Forum
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Old 9th-February-2008, 09:20 AM   #1

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Differential Fluid

Im attempting to tune up my Nova from "head to toe". How often does differential fluid need to be changed? How do you know? Does my vehicle even have this fluid?
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Old 9th-February-2008, 02:13 PM   #2
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you should probably change it, not knowing how old it is... you will need to loosen up all the bolts on the rear end to get the fluid out. you may want to get a new gasket for the rear too.

To fill it up, there is a plug in the case towards the front of the axle on the passenger side. put oil in until you can see it barely coming out. hope I helped
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Old 9th-February-2008, 04:15 PM   #3

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just make sure that you can get the plug out before you take the cover off and drain the fluid. Also, if you have a posi rear you will need limited slip additive.

It's easy when you know how.
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Old 9th-February-2008, 05:13 PM   #4
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If you do as the service manual recommends.... every 20k miles....

most never got changed for 80,000 miles or more.
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