Thread: rear end oil
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Old 10-18-2020, 09:38 PM   #5
JSeery
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Default Re: rear end oil

Quote:
Originally Posted by mgerhold View Post
its says it exceeds gl5. do i need to run gl4 gear oil?
Not in a rear axle, GL5 is a transmission issue, not a rear axle issue. High EP additives can attach "yellow" metals, like those found in a transmission. That should not be an issue in a rear axle.
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