BCM is not VIN specific, until it is programmed into the vehicle. So, I don't see why they couldn't ship one from the plant.
Switching between two cars may or may not be possible. Not sure, but I do know some GM vehicles can't be swapped due to being VIN specific, and once tied to a VIN, they cannot be switched to another vehicle.
They can be returned and rebuilt by Motorola, Bosch, whoever manufactured it, and then it is like new...no tie to a VIN.
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Black Sheep Hummer Squadron
(ME TOO)
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