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Old 10-07-2021, 08:26 AM   #1
dono50
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Arrow NOS 1BA-6331-B2 Ford rear main bearing question

What does the B2 mean ? .010 or .020 under size ?
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Old 10-07-2021, 01:10 PM   #2
rotorwrench
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Default Re: NOS 1BA-6331-B2 Ford rear main bearing question

In the suffix, "B" would indicate .010" under size. The "2" in that suffix would be an engineering change but that won't change the size. My books don't cover the -B2 suffix bearing part number and it's a 1953 edition.

It may just be that the later stuff was out sourced and made by different manufacturers.

Last edited by rotorwrench; 10-07-2021 at 01:17 PM.
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Old 10-07-2021, 09:47 PM   #3
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Default Re: NOS 1BA-6331-B2 Ford rear main bearing question

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Quote:
Originally Posted by rotorwrench View Post
In the suffix, "B" would indicate .010" under size. The "2" in that suffix would be an engineering change but that won't change the size. My books don't cover the -B2 suffix bearing part number and it's a 1953 edition.

It may just be that the later stuff was out sourced and made by different manufacturers.
Thanks rotorwrench, that explains it all
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