Well optioned car!
Axle ratio wont be listed on the invoice. If car had been a regular Firebird or a Formula, would see Safe-T-Track listed on the invoice if car was ordered with a posi. The ID code for r/e will be indeed listed in a box on original broadcast sheet. When equipped with a 4spd, didn't matter in '73 if a 455 D-port T/A was optioned with a/c or not, it will be a 3.42 posi.
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Buzzards gotta eat... same as worms.
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