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#7
10-29-2017, 11:02 PM
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My 69 has a “BM” coded 12 bolt. 3.31 open carrier. I’m pretty sure it’s original to the car. I have bought a set of used GM 4.30 gears. Also buying a 4 series carrier from a friend. I was disappointed to find out it was a non posi but that’s how they came.
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