Help identifying

[Sammesserli99]

Need help identifying this rear end. Hopefully these are the correct codes for that. Thank you.

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[hoagster]

BR3 - C10 1984-87 2.73 non-locking,

You can thank @RetroC10Sport for the info he posted the whole list. Bit it's hard to find. https://www.gmsquarebody.com/forums/the-squarebody-reference-library.52/

Squarebody rear axle codes​