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Old 10-31-2019, 10:08 PM
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daduck daduck is offline
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Join Date: Jul 2005
Location: Cottleville, MO
Posts: 165
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Vetteman61,
I measured my 77 Grand Prix (same dash as Grand Am) and the widest section of the dash pad is 58 inches measured on a horizontal line as close to the top of steering column as possible (with my tape measure against the back side of the steering wheel).
In other words....a horizontal line at the bottom of the top left dash vent. This line also happens to be the narrowest point between the left and right upper door panels at 59 inches. So there is about 1/2 inch space between the edge of the dash pad and the upper door panel (on each side of the dash). If this makes no sense...I can send a pic of the position of my tape (PM me your e-mail or phone that I can send a pic to).

If you find a dash that needs some miscellaneous pieces (vents/speaker cover/cluster) I probably have what you need since I have parted out at least 5 GP's of that vintage.