Rear end oil
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Joined: Oct 2004
Posts: 19,366
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From: Cape Cod, Mass.
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I have always used generic 80/90 gear weight oil and one 4 ounce bottle of GM posi lube. Never had a rear end issue in any of my old Corvettes in 45 years and hundreds of thousands of miles.
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Intermediate
Joined: May 2016
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