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Old 01-09-2018, 12:11 PM   #6
George Miller
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Join Date: May 2010
Location: NC
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Default Re: Rear main oil return tube

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Quote:
Originally Posted by Dave in MN View Post
I agree with Herm: 5/16" is limited to the amount of oil flow it can handle. They have caused rear main leaks for me. I change all rear caps over to 3/8".
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I also change them to 3/8 Ford changed them to 3/8 because 5/16 is to small.
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