We've checked around for the '66 - '67 GTO full quarter panels, but the repros still aren't available.    Anyone know anything?

Did you call them or just check the catalog?

I looked them up on their respective web pages.  And unless I'm overlooking something major, they appear to be exactly what you're looking for, and not just skins or partials.  Pretty much the same deal you used on the '65 Chevelle.

On the Year One website, I took the following route to find them:

Year One Home-> GTO-> Body-> Quarter Panels-Full-> Part number FP566LH (driver side) & FP566RH (passenger side).

Or you can buy part number FP566LHRH and get both the driver & passenger side for a very slight discount (of only a few dollars).

Any word on whether or not those full quarters at Year One or OPGI are the real deal?

I just downloaded the most current 2009 copy of the Ames GTO catalog a few days ago, which also states that the full rear quarters for '66 GTOs were in tooling at the time of the catalogs publication, and to inquire on availability/price if interested.  I wonder if they have any more info on them by now.  Either way, it sounds like they're about to become available, thus making my life (and yours) much easier!

Here's the video on the TCI Transmission Control Unit.. it's a very user-friendly system that allows you to completely tune and tailor your electronic transmission to your liking.   We used it to dial in the GTO's 4L65E automatic.   Watch the video to learn more!

A new post on the '66 GTO!  Excellent.

I can hardly wait to (hopefully) see more videos of it driving.  I'm interested to see how the powetrain behaves on the road, and how well it juggles both long-haul driving and drag strip duty.

Fantastic.  Can't wait to see burnouts!