Transmission VIN number

[340wedge]

My vin on my 71 Duster 340..Before the VIN number is 1B452494. I am assuming "1" is for 1971, does anyone know what the "B" stands for?

 

[cudascott]

B is the assembly plant code in this case Hamtramck,MI.

 

[340wedge]

B is the assembly plant code in this case Hamtramck,MI.

Thank you!

 

[CudaFactHackJob]

Badass mafakkah!