I wouldn't argue against the 4.33 gears , it was an available option even on base engine cars.
But very unique on a base engine car.
GM of C was notorious for wacky made up wording that wasn't compliant to factory lingo.
Someone blundered the whole 15" and Chrome definition.
I think they have gotten more streamlined with most of it now.
Also, i think GM of C has the capacity for the P-Code of whatever tire was installed, even if standard. iirc
That would link back to a specific tire and size.
American PHS or another run through GM of C would probably set the wheel size straight.
15" Rally 2 didn't materialize until 1970 TA.
Impossible element for a 69 GTO.
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