808: the center section on my wing is roughly 43 3/16", but its not straight. its actually a compound curve.
ok here are a few pics of what i am talking about.
its a little hard to tell, but in these pics, the threaded section you see is actually a metal insert that the fiberglass post is made around.
that way, it mounts and holds much like OEM.
(ignore the ghetto gasket..lol)



vin, also another thing the wifey just mentioned actually. the TRD wing center section is normally adjustable into 3 diffrent positions, this copy i have from chrisc is also adjustable, i assume your guys will be able to replicate it without an issue, correct?
the center adjusts by changing the "washer" that goes thru the post into the center section.
here are a couple pics of that:


by flipping those washers into diffrent positions, you can adjust the angle of the wing into the 3 diffrent positions.
a couple of the whole wing for refrence:


man, she looks naked without that wing!