iirc the four speed supplier change had nothing to do with model, but everything to do with model year;
I am pretty confident that a 1973 Grand Am with a four speed would have a muncie.
If it was a late 1974 car, then it would likely have a BW ST-10.
If it was a 350-2bbl, it would probably be a saginaw.
It’s a Pontiac, so it should have a (factory) hurst shifter.
That’s probably an i credibly rare shifter arm - as it would be 1973-75(?) Pontiac specific;
Likely shared between Grand Am’s, (1973) GTO’s, and Lemans’.
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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.
1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
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