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SOS - Transmission Identification

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Old Jun 20, 2024 | 06:36 PM
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From: Detroit
SOS - Transmission Identification

Hey guys!
I'm trying to figure out from this photo if I'm looking at a T2 trans or a standard 12a trans.

According to the seller this 85 GSL SE *was* running a T2 engine and trans and as far as I know no one took out the trans and swapped in an older na trans.

Is it obvious from the photo to anyone which one I've got here?

Sorry for the bad picture it's all I was given. I'm buying from out of town and trying to get confirmation before traveling.

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Old Jun 20, 2024 | 09:22 PM
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From: KC
The TII trans will have ribs on the side of the body.
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Old Jun 21, 2024 | 12:31 AM
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That's a smoothcase. There's no separate bellhousing like a ribcase.

It's hard to tell if that is a GSL-SE or 12A transmission. A GSL-SE trans will have a vent on the left side, right where an '83-85 12A oil cooler would hit it. They're basically the identical except for 5th gear ratio.

Last edited by peejay; Jun 21, 2024 at 12:36 AM.
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