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How much rear end fluid?

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Old 04-06-2004, 10:41 AM
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Question How much rear end fluid?

Ok I am almost at 50K miles and want to do a bunch of tune up stuff to my car plugs and wires, rear end, fuel filter. How much fluid goes in the rear end when I change it? I know you buy the 75-90 royal purple max gear oild which is like $7.99 a bottle but how many of those do you need? Also you need gm posi additive and how many of those go in the rear end? Also is a gasket necessary? part #?

Thanks, Chris
Old 04-07-2004, 10:54 AM
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2 quarts of fluid should do it... just pour it in until it flows back out through the fill hole. Mine took almost 2 full quarts... as for the additive, I don't think you'll need it because most of the high end synthetics (Red Line, Royal Purple, etc) have the additive in it already.
Old 04-08-2004, 12:40 AM
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Thank you
Old 04-09-2004, 07:41 PM
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I found that filling the stock rear was a pain in the *** so I bought a little "injector" thing from autozone. It looks like a small turkey-baster and made the job 100% easier. You can also hook a plastic tube to it to make it even easier.




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