Thread: Aluminum #621 Bellhousing
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Old 08-16-2009, 07:39 PM
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John Brown John Brown is offline
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Default Re: Aluminum #621 Bellhousing
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Any pics of the part number and logo areas? Font and location helps define the year it was cast.

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that is very interesting.I had never heard that before.I have about a dozen of them.I am going to pull them out and make some comparisons

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You will find the large letter GM logo may be on the top or on the side on different year castings. Dont know when they moved it, but I'm sure sombody else can tell you.
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