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Changing rear end fluid posi or not

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01-27-2020, 06:31 PM	#1
truckin 79 Registered User Join Date: Jun 2014 Location: CO Posts: 749	Changing rear end fluid posi or not Did a 79 1/2 ever come with a posi rear end? I need to change gasket and fluid but did not know if I needed to add special posi fluid. I have a big oil sludge hanging under rear end and so I think it is leaking gear oil and needs changed. thanks __________________ 79 Chevy 2wd BIG10 350 TH400

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