[TR] aero screen mounts

[Randall]

> don't the  mounts come with the aero screens when purchased?

I believe Tony's problem is that the currently available reproductions do
not mount exactly the same as the originals.  The early TRs had captive nuts
built into the body for mounting the factory-optional screens; but the
aftermarket screens don't fit those nuts.

Don't recall offhand when the captive nuts were deleted, but it was pretty
early.  TS13571L has them, TS39781LO did not.

Randall