My original Nov. built Fremont '64 GTO has 8 holes for the bottom trim, 4 to either side of the lock cylinder/decklid centerline.
Crudely measured 5/16" up from lower edge to hole center. Only measured one, so assume they are uniform. Measured on outside of decklid.
The holes are NOT spaced uniformly center to center.
Can't look at the trim, but I'm guessing the studs are movable so center to center spacing not critical. I see that Tempest confirms that idea.
I measured 2nd one in from the right at 8-7/16" center to center but others seem to range between 8" and 9".
The right side hole was about 1-1/16" from the panel side edge to the hole center.
The left side hole was about 1", maybe a tad less from the panel side edge to the hole center.
The GTO nameplate holes:
The right side hole is 6-3/16" from the panel edge to the hole center.
The 2 holes are 3-5/8" center to center (check against the stud spacing on the nameplate).
The surface on which the nameplate mounts measures 3" from upper crease to lower crease.
The hole centers are 1-3/16" UP from the lower crease (the crease position is hard to define but I'm guessing the holes were punched below center of that surface so that the GTO lettering is more or less centered on the panel surface between the creases when installed, but just guessing).
Don't know if the hole measurements were same at all plants or throughout the year.
Hope this helps.
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