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Difference between 12a and 13b tranny?

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Old Sep 22, 2005 | 09:37 PM
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Monterj
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Difference between 12a and 13b tranny?
Hey guys, I'm looking for a 13b transmission for my 85 gsl-se. This guy has one but doesnt know if it's from a 12a or a 13b motor. How can I tell the difference between the two trannies? Thanks.
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Old Sep 22, 2005 | 09:49 PM
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From: St Joe MO
Doesn't matter. Buy it and install it.
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Old Sep 22, 2005 | 10:01 PM
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From: 3OH5
The 13B Tranny will have a Vent on the side of the bellhousing. The 12A one does not.
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Old Sep 22, 2005 | 10:12 PM
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Thanks for the info. I'll probably get it either way cuz I'm afraid I'll need it soon. My current transmission is acting up...
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Old Sep 22, 2005 | 10:16 PM
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the gslse tranny will have a taller 5th gear also
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Old Sep 22, 2005 | 10:45 PM
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From: Socal
If you wanna see a sample, come over. but unfortunately, I cant sell you my junks.
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Old Sep 23, 2005 | 01:21 AM
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Monterj
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Wacky, I just want to BORROW one of your trannys, I'll give it back when my engine dies I promise
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